How do I report an unfair bonus?

How do I report an unfair bonus? Make a formal complaint to the casino first, in writing, with screenshots of the offer terms. If it isn’t resolved within 8 weeks, or you get a final response you disagree with, take it to the casino’s approved dispute resolution service – such as IBAS – which is free. Misleading bonus adverts can be reported to the ASA separately.

Key takeaways

  • Always start with the casino’s own complaints process; dispute services won’t take a case that hasn’t been through it.
  • The casino has 8 weeks to resolve your complaint, then must offer referral to alternative dispute resolution (ADR).
  • ADR is free and independent; IBAS decisions are binding on registered operators up to £10,000.
  • The Gambling Commission doesn’t settle individual disputes, but you can tell it about a licence breach.
  • Report a misleading bonus advert to the ASA, which handles adverts rather than account disputes.
First step
Casino’s complaints process
Casino deadline
8 weeks
Then
Free ADR, e.g. IBAS
Time to go to ADR
At least 12 months from final response
Misleading adverts
ASA

How do I report an unfair bonus? The short route

The route has a fixed order, and skipping a step usually means your case is turned away. You complain to the casino; the casino has up to 8 weeks to deal with it; if you’re still unhappy, you go to the independent alternative dispute resolution (ADR) provider the casino names. Separately, if the problem is an advert, the Advertising Standards Authority can act, and if you think the casino broke its licence, you can tell the Gambling Commission.

This page explains each step, what counts as unfair, and what evidence to collect. It is part of our casino bonus questions; our complaints and ADR rules page covers the regulations in detail.

What makes a bonus unfair under UK rules

Not every disappointing bonus is unfair. Losing a bonus during wagering, or a max-bet rule you agreed to, is the deal working as written. A bonus or the way it’s handled may be unfair if it breaks consumer law or Commission guidance. The Commission’s guide to fair and transparent terms (opens in a new tab) and the Consumer Rights Act 2015, section 62 (opens in a new tab) set the standards.

Signs a bonus may be unfair, and the rule involved
What happenedWhy it may be unfairRule or guidance
Winnings voided for play the terms didn’t prohibitProhibited play must be set out in advanceCommission guidance on promotional play restrictions
Terms changed after you opted inOpted-in promotions can’t be varied except to prevent fraudCommission guidance on the right to vary
You couldn’t withdraw your own depositDeposit balance must be withdrawable at any timeCMA principles; Commission guidance
Key condition hidden in general T&CsSignificant terms must be shown with the offerLCCP 5.1.9; CAP 8.17
Wagering above 10x (offer from 19 January 2026)Exceeds the legal capLCCP SR code 5.1.1
Casino reserved ‘sole discretion’ to void winningsUndue discretion terms are not allowedCommission guidance; Consumer Rights Act
Ambiguous term read against youMeaning most favourable to you should applyConsumer Rights Act s.69

If you’re unsure, our pages on what happens if you break bonus terms and unfair terms under the Consumer Rights Act help you judge.

Gather your evidence before you report an unfair bonus

  • Screenshots of the offer page and full terms as they were when you opted in (note the date).
  • Your account transaction and bonus history: deposits, bonus credit, wagering progress, balance changes.
  • Game history for the sessions in question, if the casino says you broke a rule.
  • All emails and chat transcripts with support, with dates and reference numbers.
  • The casino’s written reason for voiding, removing or withholding anything.

Step by step: how to report an unfair bonus

  1. Contact support, explain the issue briefly and ask them to fix it. Many problems end here.
  2. If not, ask to make a formal complaint under the casino’s published complaints procedure and get a reference number.
  3. Set out what happened, the term involved, why you think it’s unfair, and what you want (for example, winnings reinstated).
  4. Wait for the final response. The casino has 8 weeks from receiving the complaint.
  5. If unresolved after 8 weeks, or you disagree with the final response, ask which ADR provider the casino uses (it must tell you).
  6. Submit your dispute to that ADR provider with your evidence. It is free.
  7. If the advert itself was misleading, report it to the ASA as well.

The Commission’s own page on how to complain (opens in a new tab) sets out the same order. For contacting support in the first place, see how to contact support about a bonus.

Taking an unfair bonus complaint to ADR

ADR providers are independent and free for players. The Commission’s list of approved providers has included IBAS, eCOGRA, Pegasus ADR, CEDR, ADR Group, ProMediate, Blexr and the Tattersalls Committee; the list may change as new accreditation under the Digital Markets, Competition and Consumers Act 2024 comes in, so use the provider your casino names. Providers must accept disputes for at least 12 months after the casino’s final response.

IBAS’s guide to raising a dispute (opens in a new tab) explains its process. IBAS says registered operators agree to be bound by its decisions up to £10,000. In the Commission’s 2019–20 data, disputes over bonus or promotional terms made up 8.2% of cases IBAS handled, and a common reason for refusal was that the operator’s own complaints process hadn’t been completed. Read more under IBAS.

Who handles what in a bonus complaint
BodyHandlesDoesn’t handle
The casinoYour complaint first, within 8 weeks–
ADR provider (e.g. IBAS)Individual disputes after the casino’s processCases that skipped the casino stage
Gambling CommissionLicence breaches, enforcementIndividual disputes or refunds
ASAMisleading or irresponsible advertsAccount disputes
ICOUnwanted marketing, data issuesBonus terms

Reporting an unfair bonus to the Gambling Commission

The Commission does not resolve individual complaints, but it wants to hear about possible licence breaches, and reports help it spot patterns. Its enforcement can be significant: in July 2025 it fined Taichi Tech £170,000, partly over a term letting it close accounts or forfeit winnings at its discretion. See Gambling Commission enforcement on promotions for more cases.

Reporting a misleading bonus advert to the ASA

If an advert, email or affiliate page left out a significant condition – a deposit requirement, excluded payment method, wagering or a time limit – the ASA can rule on it. Its guidance on promotional terms and significant conditions (opens in a new tab) explains what must be shown up front. The ASA has upheld complaints where an excluded payment method sat only in small print. It won’t get your money back, but it can stop the ad. Our page on ASA rulings on casino bonuses summarises examples.

What to write in an unfair bonus complaint

Keep it factual and short. A structure that works:

  1. Your account username and the date of the problem.
  2. The offer name and the date you opted in.
  3. What happened, in order, with amounts.
  4. The exact term the casino relied on, and why you think it doesn’t apply or is unfair.
  5. What you want the casino to do.
  6. A request for a final response and the name of its ADR provider.

Stay calm and stick to evidence. Never try to get round terms by opening another account or using someone else’s details; that breaks the rules and can lose you any claim.

Complaints at our partner casinos and their offers

Each partner publishes its own complaints process; see Coral bonus complaints, Ladbrokes bonus complaints and PlayOJO bonus complaints. Coral and Ladbrokes are both run by LC International Limited (UKGC account 54743), PlayOJO by Skill On Net Limited (39326). Their current offers are 18+, new customers only, and terms apply:

  • Coral: bet £10 on slots to get 100 free spins at 10p on selected games, no wagering on winnings; accept within 48 hours, valid 7 days. Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards don’t qualify.
  • Ladbrokes: play £10 on slots to get 50 free spins a day for 10 days (up to 500 at 10p), no wagering; claim before 23:59 daily, valid 7 days. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers don’t qualify.
  • PlayOJO: 80 free spins at 10p on Big Bass Bonanza on a first deposit of £10+, winnings paid as cash; excludes Northern Ireland and can’t be combined with other offers.

Reading these conditions before you deposit – especially the payment exclusions – avoids the most common disputes.

Ad 18+ only. We may earn commission from these links. Advertiser disclosure

Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.

Coral Casino logo

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Wagering
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Time limit
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Worked value
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Read the Coral review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

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Wagering
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Worked value
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Read the Ladbrokes review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

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Minimum
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Time limit
See offer terms
Worked value
80 spins at £0.10 (£8 in spins)

Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk

Read the PlayOJO review Licence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.

18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: set a budget. Free, confidential help: National Gambling Helpline 0808 8020 133.

Frequently asked questions

Who do I complain to about an unfair casino bonus?

Start with the casino itself, using its formal complaints procedure. If the complaint isn’t resolved within 8 weeks, or you disagree with its final response, take it to the independent ADR provider the casino names, such as IBAS. ADR is free. The Gambling Commission doesn’t resolve individual disputes, and the ASA deals only with adverts. Keep screenshots and written records throughout. Our page on where to complain about a casino lists each body and what it can do.

How long does a casino have to respond to a complaint?

Eight weeks from receiving it. If the complaint is still unresolved after that, the casino must offer to refer you to its ADR provider. Many complaints are settled much faster, especially if you include clear evidence from the start. ADR providers must give you at least 12 months from the casino’s final response to bring your dispute, so you don’t need to rush. Our complaints and ADR rules page sets out the full timeline.

Is IBAS free to use?

Yes, IBAS is free for consumers. It handles disputes between players and gambling operators that have been through the operator’s own complaints process first, and it says registered companies agree to be bound by its decisions up to £10,000. Not every casino uses IBAS – the casino must tell you which ADR provider it uses. In the Commission’s 2019–20 data, a large share of refused IBAS cases were refused because the operator’s complaints process wasn’t finished. See our IBAS entry.

Can the Gambling Commission get my bonus winnings back?

No. The Commission doesn’t resolve individual complaints or order refunds for single customers. What it does is regulate operators: it can investigate licence breaches and impose fines or conditions, as it did when it fined Taichi Tech £170,000 in July 2025 partly over unfair terms. For your own money, the route is the casino’s complaints process followed by ADR. Telling the Commission about a breach is still worthwhile. See who regulates casino bonuses.

What counts as an unfair bonus term?

Under the Consumer Rights Act 2015, a term is unfair if, against good faith, it creates a significant imbalance in rights to the consumer’s detriment, and an unfair term doesn’t bind you. Commission guidance adds specific examples: terms giving the casino sole discretion to void winnings, changing an opted-in promotion, blocking withdrawal of your own deposit, or prohibiting play that wasn’t set out in advance. Hidden significant conditions also breach advertising rules. Read are bonus terms legally binding.

Can I report a misleading bonus advert?

Yes, to the Advertising Standards Authority. Gambling ads must state significant conditions – such as deposit requirements, wagering, time limits and excluded payment methods – clearly, with full terms one click away. The ASA has upheld complaints where key conditions were missing or buried in small print. It can require an ad to change or be withdrawn, but it won’t resolve your account dispute or refund money. Our significant conditions in ads page explains the rules.

What if the casino says I broke the bonus terms?

Ask for a full written explanation of the term it says you breached and the play involved; Commission guidance says you should get one where winnings are lost. Compare it with the terms you screenshotted when you opted in. If the prohibited play wasn’t clearly set out in advance, or the term is vague, say so in a formal complaint. If you did break a clear term, ADR is unlikely to overturn it. See can a casino void my winnings for typical cases.

Can I complain about a casino that isn’t UK licensed?

Not through UK channels. Offshore or unlicensed sites are outside the Gambling Commission’s rules and aren’t bound to use an approved UK ADR provider, so you may have no effective route if a bonus dispute arises. That is one of the main reasons to use only casinos licensed for Great Britain; you can check a licence on the Commission’s public register. Our UK vs non-UK casino bonus comparison explains the protections you lose.

Should I keep playing while my bonus complaint is open?

It’s usually better not to play with the disputed balance, as further play can complicate the record. You can still withdraw your own deposit balance if it is available. If the dispute is causing stress or you’re tempted to chase a loss, take a break using your account’s time-out tool. The National Gambling Helpline on 0808 8020 133 is free and open 24/7. Our page on whether you can withdraw with wagering pending explains what’s available.

Sources

18+ only. Please gamble responsibly.

Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Visit GamCare.org.uk and GamCare, or block yourself from all UK-licensed gambling sites with GAMSTOP.

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