How to complain about a UK online casino and use ADR

If a UK online casino has not resolved a disagreement about a withdrawal, game result or bonus, start with the casino’s formal complaints procedure. Keep the evidence and the date the business received your complaint. A dispute about the outcome of a gambling transaction may then go to the operator’s approved Alternative Dispute Resolution (ADR) provider if the internal process ends in deadlock or remains unresolved after the applicable eight-week period. The Gambling Commission regulates the industry but does not decide your individual claim or recover your money for you.

The route in one minute

1. Identify the problem and the operator’s decision. Is the disagreement about money or the outcome of a gambling transaction, or mainly about service? Save the account history and the terms that applied at the time.
2. Make a formal complaint to the casino. Follow its published complaints policy, state the outcome you want and request written acknowledgement. A support chat may solve a simple issue, but do not assume an ordinary chat has started the formal complaint clock.
3. Keep a dated record. Save the submitted complaint, the acknowledgement, later requests for information and the final response. The Gambling Commission’s consumer steps say to provide dates, times, amounts and supporting evidence and keep a copy.
4. Escalate when eligible. If the operator reaches a final position or deadlock earlier, or the complaint remains unresolved after eight weeks, ask for its named ADR provider and referral information. The ADR provider decides whether it can consider the dispute; it is free to the consumer.

You can complain as soon as there is a real unresolved problem. Eight weeks is not a waiting period before you may contact the casino. Nor is it a promise that both the operator’s process and ADR will be completed within eight weeks. The Commission’s ADR requirements describe the point at which a customer must be offered an ADR referral, including earlier deadlock and any documented pauses to the internal clock.

Complaint, ADR dispute or regulatory concern?

The first destination is usually the gambling business, whether the issue concerns a missing payment, disputed spin result, bonus term, ID check or poor service. The Commission lists these common complaints. If the complaint becomes an unresolved disagreement about a gambling transaction’s outcome, an approved ADR provider may decide it. By contrast, the Commission’s consumer ADR guide says ADR does not accept a customer-service-only complaint or a complaint that a business declined to accept a bet or the customer.

You may also tell the Gambling Commission about a suspected breach of its rules. That can inform regulation, but it is not a substitute for the casino complaint and ADR route when you seek a decision about your own money. The regulator says it is not an ombudsman and cannot resolve individual gambling transactions. We do not decide disputes either, and you should not send us your account statements or identity documents.

Build a small evidence pack before you submit

Write a chronology in plain language: what happened, when, what you expected under the applicable terms, what actually appeared in your account and what you have already asked support. Keep only what is relevant to the issue. Depending on the case, that may include:

• the account or transaction reference, dates, amount, game or promotion name, and screenshots showing the original status or balance;
• the version of the offer or game terms that was displayed when you acted, including opt-in, wagering, expiry and any maximum-win condition;
• the casino’s emails or in-account messages, the date you provided requested information, and its explanation or final decision;
• for a payment issue, a transaction trace or bank/wallet confirmation with unnecessary private details removed only if the receiving organisation accepts that form of evidence.

Do not publicly post a passport, full bank statement, card details or account password. Provide sensitive evidence only through the operator’s or ADR provider’s verified secure channel when it is genuinely needed. Ask what format and date range they accept before redacting a document; a cropped screenshot may omit the very transaction in dispute.

How to make the formal casino complaint

Find the operator’s own complaints policy in its website or account help area. Use the named complaints address or form and say explicitly that this is a formal complaint. Describe one main issue per clear chronology, even if several messages relate to it. State the resolution you are requesting—such as an explanation of a voided win, payment of a balance you believe is due or correction of an account record—without assuming it is already guaranteed.

Ask the business to acknowledge receipt, give a reference and confirm the date it treats as the start of its procedure. If support asks for further evidence, keep the request and your response. The Commission says gambling businesses have eight weeks to resolve a complaint after receiving it and must tell customers the result and the next step. Its published process is the source for that framework; a particular complaint can reach a final position sooner. If the operator says its clock was paused, ask for the dates and reason rather than silently resetting your own record.

A message you can adapt

Subject: Formal complaint about [transaction or account reference]. I am complaining about [short issue]. On [date/time], [what happened]. The relevant terms or account record said [specific wording or status]; I have attached [relevant evidence]. I first contacted support on [date] and received [response, if any]. Please acknowledge this as a formal complaint, confirm the date received and reference number, explain your decision against the applicable terms, and tell me the next step and your named ADR provider if we cannot resolve it. I am asking for [specific outcome].

Use your own accurate facts. Do not email WagerFreeSpins the filled-in message or documents: we are an information website, not the operator, regulator or ADR provider.

When and how to use ADR

ADR is an independent, free route for an eligible dispute about the outcome of a gambling transaction. You must first use the casino’s complaints process. If you receive a final or deadlock letter before eight weeks, or the relevant internal period has run without resolution, ask the operator which approved ADR entity it uses and how to refer the case. Its terms should identify the provider; the Commission maintains a list of approved providers. Do not choose a random complaints website merely because its name resembles the operator’s provider.

Send the ADR provider the complaint, operator response or deadlock letter, terms, chronology and relevant evidence through its official channel. The provider first determines whether the matter falls within its remit; acceptance is not a finding in your favour. If you have no acknowledgement, the Commission suggests checking spam and then contacting the provider. Each provider’s procedure and evidence requirements can differ, so read the instructions it gives for your case. The eight-week internal window is not a universal ADR decision deadline.

A service-only grievance may remain a valid complaint to the casino even when ADR cannot adjudicate it. If the provider declines jurisdiction, ask it to explain why and keep that decision. If you disagree with a final ADR decision, its own appeal rules may provide a limited route; the Commission’s ADR guidance also mentions independent legal advice before considering court action. This page is not legal advice or a prediction of an outcome.

Where to start for common casino problems

Withdrawal still pending or withheld

First establish whether the request awaits operator approval, has been dispatched or is waiting for bank/wallet credit. Our pending-withdrawal guide includes a status checklist and distinguishes identity checks from source-of-funds questions. Keep the request time and any trace reference for a formal complaint.

Promised free spins never appeared

Check the opt-in, qualifying play, award window, eligible game and promotion history before alleging a missing reward. Our missing-free-spins guide gives a record-keeping checklist. If the operator rejects the claim, preserve the exact offer terms and the decision.

Winnings removed under bonus terms

Separate cash and restricted bonus balances, then identify the precise rule invoked—wagering, maximum bet, expiry, eligible game or a win cap. See our balance explanation and maximum-bet guide. Do not assume a promotion headline overrides the terms shown to your account.

Common questions

Can I go straight to the Gambling Commission for my payout?

You may report a regulatory concern, but the Commission says it cannot decide an individual transaction or recover money as an ombudsman would. For a claim about your payout, use the operator’s formal complaint and then the eligible ADR route. Do not mistake a report to the regulator for a filed casino complaint.

Do I have to wait eight weeks to complain or ask for help?

No. Make the complaint when the issue is unresolved. An early final position or deadlock can open an ADR referral before eight weeks; otherwise the eight-week internal period is the usual point for escalation, subject to the applicable rules on a paused clock. Preserve the date of receipt.

Will ADR hear every complaint about an online casino?

No. It considers eligible disputes related to the outcome of gambling transactions. The provider decides admissibility. The Commission explicitly excludes customer-service-only complaints and refusal to accept a customer or bet from this ADR route. The casino’s own complaint procedure still handles those grievances.

Sources and limits: We used the Gambling Commission’s complaints process, consumer ADR guide, ADR timing rules and explanation of its role, read on 6 October 2026. We have not reviewed any individual account, tested a complaint or obtained legal advice for you. Operator procedures and ADR-provider rules can change; check their current pages before sending sensitive material. 18+ only. If gambling is affecting your wellbeing or finances, free confidential support is available from GamCare.