Rental Advert Compliance Checklist
A rental advert is not just marketing. It can create evidence about rent, bidding, discrimination, fees, deposits, property condition, pets, licensing, agent compliance and whether applicants were treated fairly.
This checklist helps landlords, letting agents and renters in England review rental adverts before they go live, before an applicant is filtered out, or before a complaint is made about misleading wording, bidding, benefits, children, fees, deposits, pets or missing information.
What rental advert compliance means
Rental advert compliance means making sure a property listing is accurate, lawful, fair, clear and backed by evidence before it is shown to potential renters. It covers the words in the advert, the photos, the asking rent, fees, deposits, eligibility wording, pet wording, landlord or agent details, property description, availability, licensing, EPC, bills and the way applicants are handled after they respond.
A compliant advert should help a renter make an informed decision. It should not hide material information, invite unlawful bidding, discourage people because they receive benefits or have children, imply banned fees, misdescribe the property, exaggerate size or facilities, or create a blanket refusal where the law requires case-by-case consideration.
For landlords and agents, the safest advert is one that can be defended later with screenshots, rent records, deposit calculations, fee schedules, EPC records, licence checks, landlord instructions, application criteria and viewing notes.
Official guidance and responsible department
This page is based on GOV.UK Renters’ Rights Act guidance, Tenant Fees Act guidance, Consumer Rights Act fee-publication duties, client money protection guidance, Business Companion property-description guidance, CMA unfair commercial practices guidance, legislation, Shelter, Citizens Advice, NRLA and Housing Hub materials. The main government department for private rented sector reform is the Ministry of Housing, Communities and Local Government.
| Country covered | England only. Scotland, Wales and Northern Ireland have different tenancy, letting-agent, fee and advertising rules. |
|---|---|
| Main advert risks | Rental bidding, vague asking rent, benefits or children discrimination, misleading property descriptions, banned fees, unclear deposits, incorrect pet wording, missing agent details, missing material restrictions and poor evidence records. |
| Main official routes | Renters’ Rights Act guidance, Tenant Fees Act guidance, Consumer Rights Act fee-publication duties, Digital Markets, Competition and Consumers Act consumer protection rules, client money protection, redress scheme rules and local authority enforcement. |
| Who this helps | Private landlords, letting agents, property managers, renters, advisers and anyone checking whether an advert or applicant filter is fair and lawful. |
| What this does not decide | Whether a council will enforce, whether an applicant has a claim, whether a specific advert is unlawful, or whether a landlord can rely on a particular restriction. |
This is general information, not legal advice. Get advice if the advert may involve discrimination, rental bidding, prohibited payments, misleading property descriptions, unlicensed HMO issues, agent enforcement, council investigation, redress complaint or a disputed refusal after an applicant applied.
Table of Contents
- Quick Answer
- Who This Checklist Is For
- Core Advert Rules
- Asking Rent And Rental Bidding
- Discrimination Wording
- Fees, Deposits And Upfront Payments
- Property Description And Material Information
- Pets, Accessibility And Reasonable Requests
- Letting Agent And Platform Compliance
- Records, Evidence And Complaints
- Advert Templates
- Frequently Asked Questions
Quick answer
A rental advert in England should state a specific asking rent, avoid encouraging offers above that rent, avoid wording that excludes renters because they receive benefits or have children, avoid misleading property descriptions, avoid banned fees, explain lawful deposits clearly, and keep evidence of what was advertised and when.
Landlords and agents should treat the advert as part of the compliance file. If a renter complains later, the advert can show whether the applicant was fairly informed, whether the rent was fixed, whether the fee information was clear, whether pet requests were handled properly, and whether the landlord or agent used objective criteria instead of blanket bans.
| Advert area | Compliant check | Evidence to keep |
|---|---|---|
| Asking rent | State a specific rent and rent period. | Advert screenshot, listing date and rent approval. |
| Rental bidding | Do not invite, encourage or accept offers above advertised rent where rules apply. | Messages, offer records and applicant replies. |
| Benefits | Do not use blanket “no benefits” or “no DSS” wording. | Application criteria and affordability method. |
| Children | Do not use blanket “no children” or “no families” wording. | Property size, licensing or overcrowding evidence if relevant. |
| Pets | Avoid blanket “no pets ever”; explain requests are considered fairly. | Pet policy, lease check and request records. |
| Fees | Only permitted payments should be requested. | Fee schedule, payment breakdown and website fee page. |
| Deposit | State deposit amount clearly and keep it within the cap. | Rent calculation and deposit scheme plan. |
| Property details | Describe size, rooms, facilities, bills and restrictions accurately. | Photos, floor plan, EPC, licence and landlord approval. |
| Agent details | Display redress, client money protection and fee information where required. | Website screenshots, membership certificates and branch display photos. |
Check the advert before it goes live
Use the compliance checklist and evidence builder to record asking rent, advert wording, screenshots, fee information, deposit amount, eligibility criteria, pet wording, landlord instructions and applicant decisions.
Who this checklist is for
This checklist is for private landlords and letting agents in England who advertise homes to rent. It is also for renters and advisers who need to check whether a listing, viewing filter, online form, phone script or applicant rejection looks compliant.
The checklist is focused on private renting in England. It is especially relevant where an advert is published online, shared by an agent, posted on social media, used on a property portal, sent by email, displayed in a branch window or used in a viewing script.
1. When this checklist is likely to apply
- a landlord or agent writes a rental advert;
- a property portal listing includes rent, deposit, bills, availability and restrictions;
- an advert says “offers over”, “best offer”, “bidding welcome” or similar;
- an advert mentions “no DSS”, “no benefits”, “working tenants only” or “professionals only”;
- an advert says “no children”, “no families” or “single occupant only” without evidence;
- an advert says “no pets” or “pets considered”;
- an agent asks for fees, holding deposit, deposit, rent in advance or guarantor details;
- a renter is refused a viewing or application after responding to the advert;
- a landlord wants to audit an agent’s advert wording and applicant process.
2. What this checklist does not cover
Some adverts need specialist advice. A general checklist cannot decide every discrimination, consumer protection, licensing or agency liability issue.
- a council or trading standards team is investigating the advert;
- the advert may have excluded renters with benefits, children, disability or another protected characteristic;
- the agent accepted offers above the advertised rent;
- the property may be an unlicensed HMO or overcrowded;
- the advert charged a fee that may be prohibited;
- the property description was materially wrong;
- a renter lost money because of misleading information;
- a landlord wants to recover losses from an agent for non-compliant advertising.
Core advert rules
1. Use a specific rent
The advert should include a specific rent amount and rent period, such as weekly or monthly. Avoid vague wording that invites applicants to compete above the listed amount.
Do not rely on “price on application”, “offers invited” or “best offer wins” wording where the rental bidding rules require a clear advertised price.
2. Make the advert accurate at the time of publication
Check the rent, deposit, available date, bedroom count, property type, furnished status, bills, parking, garden, shared areas, EPC, council tax band, licence position, landlord restrictions and any material works before publishing.
If something changes, update the advert and keep a copy of the old and new version.
3. Do not hide material information
Material information is information an average renter needs to make an informed decision. Hiding important restrictions, fees, defects, licence limits, shared facilities, bills, occupancy restrictions or landlord conditions can make an advert misleading.
4. Use real photos and honest descriptions
Photos should represent the property being advertised. Avoid using old photos that hide damage, a different room, a different flat, virtual staging without explanation, misleading wide-angle shots, or photos that hide shared facilities or restrictions.
5. Avoid pressure wording
Advertising can be urgent without being misleading. Avoid aggressive or misleading pressure such as “must pay today”, “non-refundable viewing deposit”, “only cash secures it”, or “highest payer gets it”.
6. Keep landlord approval
If an agent writes the advert, keep evidence that the landlord approved the rent, deposit, restrictions, pet wording, availability, property description and any application criteria.
Asking rent and rental bidding
1. State the asking rent clearly
The advert should clearly state the amount of rent and the rent period. Use one rent figure unless there is a lawful and clearly explained reason for different pricing.
2. Do not encourage offers above the advertised rent
Landlords and agents should not invite or encourage renters to offer above the advertised rent where the rental bidding rules apply. Risky phrases include “offers over”, “best and final offers”, “bidding welcome”, “higher offers considered” or “priority to applicants offering more”.
Related guide: Rental Bidding Wars and Asking Rent Rules Explained.
3. Do not accept above-advertised offers
Compliance does not stop at advert wording. A landlord or agent should not accept offers above the advertised rent where the rules prohibit it, even if the applicant offers voluntarily.
4. Keep the full offer trail
Keep records of the advertised rent, listing screenshot, applicant messages, landlord instructions, offer amounts, any rejected higher offers, and why the successful applicant was selected.
5. Avoid rent confusion
Make sure the weekly, monthly and annual rent figures match. If a rent is shown as per week and per month, calculate it correctly and explain which figure is legally payable.
6. Rent table
| Advert wording | Risk level | Safer wording |
|---|---|---|
| Offers over £1,200 pcm | High | Rent: £1,200 pcm |
| Best offer secures property | High | Applications assessed using published criteria |
| £1,200 pcm, higher offers considered | High | Rent: £1,200 pcm. Offers above this rent will not be accepted. |
| Rent negotiable | Medium | Rent: £1,200 pcm. Any permitted negotiation will not exceed advertised rent. |
| £277 pw / £1,200 pcm | Medium | Check the conversion and state the rent period used in the tenancy. |
Discrimination wording
1. Benefits and “DSS” wording
Rental adverts should not say “no DSS”, “no benefits”, “housing benefit not accepted”, “Universal Credit not accepted” or similar blanket wording. The safer approach is to use objective affordability and referencing criteria.
Related guide: Renting Discrimination Against Benefits or Children.
2. Children and families
Adverts should not use blanket “no children” or “no families” wording. If there is a genuine property suitability issue, such as legal overcrowding, HMO licence limits or safety constraints, explain the objective issue carefully and keep evidence.
3. “Professionals only” and “working tenants only”
These phrases can indirectly discourage people who receive benefits, disabled applicants, carers, students, retired people or families. Safer wording focuses on affordability checks, referencing and maximum occupancy rather than status labels.
4. Protected characteristics
Do not advertise in a way that discriminates because of race, sex, disability, religion, pregnancy or maternity, age, sexual orientation, gender reassignment, marriage or civil partnership where equality rules apply.
5. Guarantor wording
A landlord can ask for a guarantor where there is a genuine affordability or risk reason, but blanket wording such as “benefit tenants must have a homeowner guarantor” can create unfairness and discrimination risk. Use evidence-based criteria.
6. Occupancy limits
Occupancy wording should be linked to property size, room use, licence conditions, overcrowding rules or safety. Avoid using “single only” or “couples only” unless there is a genuine legal or practical basis.
7. Wording table
| Risky wording | Why risky | Safer wording |
|---|---|---|
| No DSS | Can discourage renters who receive benefits. | Applicants assessed using affordability and referencing criteria. |
| Working tenants only | Can indirectly exclude benefit recipients, disabled people, carers or retired people. | Applicants must show rent affordability from lawful income sources. |
| Professionals only | Can discourage applicants based on status rather than affordability. | Suitable for applicants who meet affordability and tenancy checks. |
| No children | Can breach rental discrimination rules. | Maximum occupancy based on property size and licensing conditions. |
| No families | Can discourage households with children. | Property suitable for up to [number] occupiers, subject to lawful occupancy limits. |
| No pets ever | May conflict with fair pet request process. | Pet requests considered in writing, subject to suitability and lease restrictions. |
Fees, deposits and upfront payments
1. Only permitted payments
Rental adverts should not request banned fees. Avoid wording that suggests admin fees, viewing fees, referencing fees, inventory fees, renewal fees, tenancy setup fees, checkout fees or pet permission fees unless the payment is clearly permitted.
2. State deposit clearly
If the advert states a tenancy deposit, show the amount clearly and make sure it is within the legal cap. Do not add a separate pet deposit that pushes the total above the cap.
Related guide: Deposit Protection Checks in England.
3. Holding deposit
If a holding deposit is requested, show the amount, explain that it is separate from the tenancy deposit, and provide written terms before taking money. Keep within the cap and record refund or allocation decisions.
4. Rent in advance
Rent in advance should be described as rent, linked to a rental period and kept separate from deposit money. Do not label extra upfront money as “security”, “insurance” or “protection” where it is really a deposit or prohibited payment.
Related guide: Advance Rent Limits: What Renters Should Check.
5. Bills and utilities
State clearly whether rent includes or excludes council tax, gas, electricity, water, broadband, service charges or communal heating. If bills are estimated, say so. Do not imply bills are included if the tenant will pay them separately.
6. Agent fee display
Letting agents must publicise relevant fees and display redress and client money protection information where required. Online listings should not hide required fee information behind unclear links or inconsistent branch displays.
Related guide: Letting Agent Compliance Checklist.
7. Payment table
| Advert payment | Compliance check | Evidence |
|---|---|---|
| Rent | Specific amount and rent period. | Advert screenshot and landlord approval. |
| Tenancy deposit | Within cap and scheme plan clear. | Rent calculation and deposit record. |
| Holding deposit | Within cap with written terms. | Terms, receipt and refund/allocation record. |
| Rent in advance | Clearly linked to rental period. | Payment breakdown and rent ledger. |
| Default payments | Only where permitted and evidenced. | Tenancy clause and cost evidence. |
| Agent fees | Publicised where required and not charged unlawfully to tenants. | Website fee page and branch display. |
Property description and material information
1. Property type and rooms
Describe the property accurately: flat, house, studio, room in shared house, HMO, bedsit, maisonette, annexe or lodger-style arrangement. Do not describe a room as a self-contained flat if facilities are shared.
2. Bedrooms and room size
Do not count a living room, box room, storage room or unsafe space as a bedroom unless it is genuinely suitable. If the property is licensed or subject to occupancy limits, check room sizes and licence conditions.
3. Shared facilities
State clearly where bathrooms, kitchens, gardens, entrances, laundry, parking or living areas are shared. Shared facilities can affect suitability, HMO status and applicant expectations.
4. Furnished status
Use accurate furnished, part-furnished or unfurnished wording. List major items included and avoid relying on photos alone if furniture may be removed before move-in.
5. Availability date
Do not advertise a property as available if the current tenant has not given valid notice, works are not finished, possession is uncertain, or the move-in date is speculative. Explain if availability is subject to works or current tenancy end.
6. EPC and energy information
Check whether an EPC is required and provide accurate rating information where relevant. Do not use an old or unrelated EPC.
7. Licensing and HMO status
If the property is an HMO or subject to selective or additional licensing, keep licence evidence and ensure the advert does not exceed occupancy limits or misdescribe shared accommodation.
8. Defects and restrictions
Material restrictions should not be hidden. Examples include no parking, major building works, unresolved damp, restricted heating, shared meters, low ceiling height, access limitations, freeholder restrictions, licence occupancy limits, or planned works.
9. Description checklist
| Detail | Advert should say | Evidence to keep |
|---|---|---|
| Property type | House, flat, room, studio, HMO or shared accommodation. | Floor plan, tenancy route and photos. |
| Bedrooms | Accurate number and usable room information. | Room measurements and licence conditions. |
| Facilities | Private or shared kitchen, bathroom, garden and entrance. | Photos and viewing notes. |
| Bills | Included, excluded or estimated. | Utility arrangement and council tax information. |
| EPC | Current rating where required. | EPC certificate. |
| Licence | HMO or licensing position where relevant. | Licence or council search record. |
| Restrictions | Material restrictions that affect decision-making. | Lease, freeholder, planning or licence documents. |
Pets, accessibility and reasonable requests
1. Pet wording
Do not rely on a blanket “no pets ever” advert where pet requests should be considered fairly. Safer wording: “Pet requests considered in writing, subject to property suitability, lease restrictions and fair conditions.”
Related guide: Landlord Pet Request Response Guide.
2. Pet deposits and pet fees
Do not advertise an extra pet deposit above the legal deposit cap or a pet admin fee unless you have checked the payment is lawful. Pet damage should be handled through evidence, fair conditions, insurance where lawful and deposit deductions for proven damage.
Related guide: Pet Insurance and Rental Property.
3. Assistance animals
Be careful with assistance animals. A “no pets” policy should not be used to automatically refuse an assistance animal or a request connected to disability.
4. Accessibility information
If the property has step-free access, lifts, adapted bathrooms, ground-floor access, narrow stairs, steep steps or other accessibility features or barriers, describe them accurately. Do not exaggerate accessibility.
5. Disability and reasonable adjustments
Adverts should avoid wording that discourages disabled applicants. If an applicant asks about adaptations, assistance animals, accessible viewings or communication adjustments, handle the request carefully and record the response.
6. Leasehold restrictions
If a lease or freeholder rule restricts pets, business use, smoking, parking or alterations, check the exact wording before advertising. Insurance or agent preference does not replace the lease wording.
Letting agent and platform compliance
1. Agent redress and client money protection
Letting agents should display redress scheme membership and client money protection details where required. If the agent holds client money, client money protection duties may apply.
2. Fee publication
Agents should publicise fees clearly online and in branch where required. The advert should not contradict the agent’s fee schedule or hide relevant charges.
3. Portal listings
If a property portal listing is created by an agent, the agent should check that portal fields do not force misleading wording. If a portal has limited fields, add clear notes in the description or linked fee information.
4. Social media adverts
Social media posts are still adverts. They should include or link to key information and should not use unlawful discrimination, bidding or fee wording. Screenshots should be saved before and after edits.
5. Branch window adverts
Branch adverts should match online adverts. Rent, deposit, availability, fees and restrictions should not differ without explanation.
6. Applicant filters and scripts
Compliance includes the process after the advert. Phone scripts, chatbots, enquiry forms and pre-screening questions should not filter out applicants unlawfully.
7. Landlord instructions to agent
Landlords should give lawful written instructions. An instruction such as “no benefit tenants” or “families not allowed” can create risk for both landlord and agent.
8. Platform evidence
| Platform | Record to keep | Why it matters |
|---|---|---|
| Property portal | Listing screenshot, rent, deposit, description and publication date. | Shows public advert wording. |
| Agent website | Advert, fee link, redress and CMP information. | Shows agent compliance information. |
| Social media | Post screenshot, comments and direct message replies. | Shows informal advertising and applicant handling. |
| Email advert | Email content, recipients and attachments. | Shows what was offered to applicants. |
| Branch display | Window photo and date displayed. | Shows offline advert wording. |
| Phone script | Script version and staff training note. | Shows applicant filtering process. |
Records, evidence and complaints
1. Keep the advert history
Keep screenshots of the original advert, any edits, the date each version went live, the person who approved it and the platform where it appeared.
2. Keep applicant records
Keep viewing requests, messages, application criteria, affordability checks, referencing notes and reasons for not progressing an applicant. These records help show that decisions were based on objective criteria.
3. Keep rent and bidding records
Keep the advertised rent and every rent offer received. If an applicant offers more, record that the higher offer was not accepted where the rules prohibit it.
4. Keep fee and deposit records
Keep deposit calculations, holding deposit terms, fee schedule, permitted payment notes, rent in advance breakdown and evidence that payment descriptions were accurate.
5. Complaint route
If a renter complains about the advert, respond in writing. Check the advert, applicant messages, fee information, landlord instructions and any staff or agent notes. Correct mistakes quickly and keep the correction record.
6. Council or trading standards evidence
Councils or trading standards may ask for advert records, fee information, applicant handling records, landlord instructions and agent membership evidence. Keep records easy to export.
7. Recordkeeping table
| Record | Why it matters | Keep with |
|---|---|---|
| Advert screenshot | Shows public wording and rent. | Property marketing file. |
| Landlord approval | Shows agent authority and instructions. | Agency file. |
| Application criteria | Shows objective selection method. | Applicant file. |
| Viewing records | Shows who was offered or refused a viewing. | Marketing and applicant log. |
| Rent offers | Shows rental bidding compliance. | Rent and offer file. |
| Fee schedule | Shows payment transparency. | Agent compliance file. |
| Deposit calculation | Shows cap compliance. | Tenancy setup file. |
| Complaint response | Shows how the issue was handled. | Complaint file. |
8. Related compliance files
Advert records should connect to the wider compliance file: tenancy documents, deposit records, safety certificates, EPC, licence, repair disclosures, pet request records and agent complaint records.
Related guide: Landlord Recordkeeping Under Renters’ Rights.
Advert templates
1. Safer rental advert structure
2. Safer affordability wording
3. Safer pet wording
4. Safer occupancy wording
5. Message template: tenant challenges advert wording
6. Message template: landlord asks agent to audit advert
7. Practical examples
Sources used
This guide was prepared from official government guidance first, then checked against legislation, trading standards guidance, consumer protection guidance, landlord guidance and housing advice. Because private renting law has recently changed, current GOV.UK, legislation.gov.uk, Business Companion, CMA, Shelter, Citizens Advice, Housing Hub and updated landlord guidance are more reliable than older tenancy manuals or out-of-date books.
Frequently asked questions
What is a compliant rental advert?
A compliant rental advert is accurate, clear, fair and evidence-backed. It states a specific rent, avoids rental bidding, avoids discriminatory wording, explains lawful payments, describes the property honestly, discloses material restrictions, and keeps records of what was advertised and when.
Does a rental advert need a specific rent?
Yes. Where the rental bidding rules apply, a written advert or offer should include a specific asking rent. Avoid “offers over”, “best offer”, “rent by negotiation” or wording that encourages applicants to bid above the listed amount.
Can an applicant offer more than the advertised rent?
A landlord or agent should not accept or encourage offers above the advertised rent where the rental bidding rules apply. Keep offer records so you can show the successful applicant was not chosen because they offered more.
Can an advert say no DSS?
No DSS or no benefits wording is risky and should be avoided. Use objective affordability, referencing and property suitability checks instead. Lawful income sources can include employment, self-employment, benefits, pensions, savings or other evidence.
Can an advert say working tenants only?
This can be risky because it may discourage benefit recipients, disabled people, carers, retired people or others with lawful income. Safer wording focuses on affordability and referencing rather than employment status.
Can an advert say professionals only?
Professionals only can be risky if it discourages applicants based on status rather than affordability. Safer wording explains the property, rent, affordability criteria and lawful occupancy limits.
Can an advert say no children?
A blanket no children advert is risky. If the property has genuine occupancy, licence, overcrowding or safety limits, explain the objective limit without discouraging families simply because they have children.
Can an advert say suitable for single occupant only?
Only use this if there is a genuine basis, such as room size, HMO licence, overcrowding rules or property layout. Keep the evidence. Do not use single occupant wording as a disguised way to exclude families or children.
Can an advert say no pets?
A blanket no pets message is risky where pet requests should be considered fairly. Safer wording says pet requests will be considered in writing, subject to property suitability, lease restrictions and fair conditions.
Can an advert require pet insurance?
Be careful. Pet insurance should not become an unlawful fee, disguised deposit or unreasonable barrier. If insurance is mentioned, explain what type of cover is relevant and still consider the pet request fairly.
Can an advert ask for a holding deposit?
Yes, but the amount should be within the legal cap and written holding deposit terms should be provided before money is taken. The advert should not describe a holding deposit as non-refundable in all situations.
Can an advert ask for rent in advance?
Rent in advance should be clearly described as rent and linked to a rental period. It should not be confused with a tenancy deposit, holding deposit, security payment or prohibited fee.
Can an advert include admin or referencing fees?
Most tenant fees are banned unless they are permitted payments. Admin fees, viewing fees, referencing fees, inventory fees and renewal fees are common red flags.
Should the advert mention the deposit amount?
It is good practice to state the deposit clearly and ensure it is within the legal cap. If no deposit is taken, say so clearly. Do not add extra pet or cleaning deposits above the cap.
Should the advert mention bills?
Yes, where bills are material to the decision. State whether council tax, utilities, broadband, water, heating or service charges are included, excluded or estimated. Avoid vague wording that makes the total cost unclear.
Can an advert use old photos?
Only if they still accurately represent the property. Old photos that hide damage, show furniture that will be removed, or show a different room or flat can be misleading. Keep current photos and explain any planned works.
Should an advert mention EPC?
Where EPC duties apply, provide accurate EPC information. Do not use an old, wrong or unrelated EPC. Keep the certificate with the advert file.
Should an advert mention HMO or licensing?
If the property is an HMO or subject to licensing, the advert should not contradict the licence or exceed occupancy limits. Keep licence evidence and room-size records.
What should a tenant save if an advert looks wrong?
Save screenshots, listing link, date, rent amount, advert wording, messages, refusal reasons, fee requests, payment receipts and any call notes. Use these records if you complain to the agent, landlord, redress scheme, council or adviser.
What should a landlord ask an agent before the advert goes live?
Ask for the final advert screenshot, rent confirmation, deposit calculation, fee link, applicant criteria, pet wording, discrimination check, EPC, licence check, availability confirmation and evidence that higher offers will not be accepted where prohibited.
A rental advert should show a clear rent, accurate property details, lawful payments, fair criteria and no hidden barriers. Save the advert, keep the evidence, avoid bidding, avoid blanket bans and correct mistakes quickly.