How to Build a Casino Complaint Evidence File in the UK

1. Start with one issue statement

Write a short description of the disputed event before collecting attachments. Identify the account, game or transaction only as precisely as needed, state the outcome you observed and explain the remedy you are asking the business to consider.

Keep observations separate from conclusions. For example, record the withdrawal request time, the status displayed and each message received. Do not describe a delay as unlawful, deliberate or universal unless qualified advice and evidence support that conclusion.

• Date and time the issue began
• Relevant transaction, game or support-reference number
• Amount involved, where relevant
• What the account or message displayed
• The specific response or remedy requested

2. Build a dated timeline

Create one row for every material event. Use the time zone shown by the operator or record your own time zone explicitly. Preserve the original order even if a later message corrects an earlier statement.

A timeline helps the operator and, if necessary, an Alternative Dispute Resolution provider distinguish the original transaction from later support conversations. It also prevents a long email thread from becoming the only record of the dispute.

• Event date, time and time zone
• Channel used: account, email, chat or telephone
• Who sent or displayed the information
• A neutral summary of the event
• The filename or reference for supporting evidence

3. Preserve terms and transaction evidence

Save the terms that applied to the relevant transaction or promotion, including the page address and capture time. Keep the full section needed to understand a condition rather than an isolated sentence. Record account and payment references, but redact full card numbers, security codes, passwords, identity documents and unrelated personal data from working copies.

If the dispute concerns wagering or offer conditions, see our plain-English guide to online casino bonus terms.

Screenshots should show enough surrounding interface to establish context. Keep an untouched original privately and use a redacted copy for submission when possible. A descriptive filename with its date and a redaction note is more useful than a generic name such as screenshot1.png.

• Applicable terms with URL and capture time
• Transaction or game-history export
• Redacted account-status screenshots
• Deposit or withdrawal reference without full payment credentials
• Copies of material chat and email messages

If your issue concerns a deposit route or withdrawal restriction, our guide to UK casino payment methods explains the relevant payment and balance distinctions.

4. Use the operator’s complaints procedure

Find the complaints procedure on the gambling business’s website and send the file through the stated channel. Ask for an acknowledgement or reference number and record the date the business received the complaint.

Current Gambling Commission guidance says the business generally has eight weeks from receipt to resolve the complaint. It also says a customer must go through the business’s complaint process before taking a dispute to an ADR provider. Record the current official guidance at the time you submit because procedures and regulatory information can change.

• Complaint-policy URL and access date
• Submission channel and delivery evidence
• Acknowledgement or complaint reference
• Date received by the business
• Each response, escalation and stated deadline

5. Prepare a clean ADR handoff if needed

The Gambling Commission explains that, after the business’s complaints process, an unresolved complaint may be eligible for an ADR provider. The business should identify the relevant provider and may issue a deadlock letter. An ADR provider considers information from both sides and first decides whether it can adjudicate the complaint.

Do not assume every disagreement falls within ADR scope. The Commission notes exclusions including customer-service issues and a business’s refusal to accept a bet or a customer. If court action is being considered, seek independent legal advice rather than treating this editorial checklist as legal advice.

Financial-business complaints follow a different route. This guide covers disputes with gambling operators, not complaints about banks, lenders or other financial businesses. The Financial Ombudsman Service says it may be able to help with some complaints involving gambling-related harm, including concerns about lending, account support or gambling-payment blocks. Complain to the firm first; you can contact the Ombudsman if you are unhappy with its final response or it has not sent one within eight weeks. Eligibility depends on the case; check the Financial Ombudsman Service guidance on gambling-related harm.

• The original complaint and every material attachment
• The operator’s final response or deadlock letter, if issued
• Evidence that the operator process was completed
• The ADR provider named by the business
• A short index matching each disputed point to its evidence

6. Keep a private master and a redacted submission copy

Store an untouched master file securely and create a separate submission copy. Remove passwords, authentication codes, full payment credentials, unnecessary identity-document images and information about other people. Check every screenshot and PDF page after redaction; drawing a translucent box over text may not remove the underlying data.

Keep a record of what was sent, to whom and when. Do not publish the complaint file as a player review or community submission. A personal dispute record is not evidence that the same result applies to other customers.

• Private original retained securely
• Submission copy reviewed page by page
• Sensitive fields removed rather than visually covered
• Recipient and transfer date recorded
• Public posting disabled unless separately consented and moderated