The strongest evidence to recover gambling losses is a clear picture of what you deposited, when, and whether the operator should have stopped you. That means account and deposit statements, self-exclusion or GAMSTOP records, verification correspondence, and your own bank records. If yours feel patchy, a check is still worth doing.
This guide explains what each record shows, why it matters to a claim, and how to keep it safe before it disappears. It is written for people who lost money after self-excluding, or who were allowed to gamble far beyond what they could afford. You do not need a complete file to start. You need enough to show what happened.
Why evidence decides a recovery claim
A recovery claim does not rest on how much you lost on its own. It rests on whether a licensed operator failed in duties it owed you, and whether that failure can be shown from records. Under the Gambling Commission’s Licence Conditions and Codes of Practice, remote operators must have systems to identify customers at risk of harm, act on what they find, and honour self-exclusion. Where they did not, the loss may be recoverable. Evidence is how a possible breach moves from a feeling to a documented account.
So the goal of gathering records is simple. You are building a timeline that answers three questions. How much money went in, and when. What the operator knew or should have known about you. And what the operator did, or failed to do, in response. The records below each speak to one of those questions.
Account and deposit statements
Your account history is the backbone of any claim. It shows deposits, withdrawals, stakes, bonuses, and the dates of each. Most licensed operators let you download a transaction or account statement from within your account, often under a settings, history, or responsible-gambling menu. Where the account is closed, you can request the data directly.
This record matters because it sets the scale and pace of your losses in the operator’s own figures. A pattern of rising deposits, deposits late at night, or repeated top-ups after losses is the kind of marker an operator is expected to notice. The statement is also the cleanest source for the dates and amounts that anchor everything else.
How to request it if you cannot log in
If your account is closed or blocked, you can make a data subject access request under UK data protection law. You ask the operator for a copy of the personal data it holds about you, including transaction history and account notes. According to the Information Commissioner’s Office, organisations should usually respond within one month. Keep your request in writing so you have a dated record of when you asked.
Self-exclusion and GAMSTOP records
If you self-excluded and were still allowed to gamble, that is often the heart of a claim, so the proof matters. There are two layers. The first is any self-exclusion you set directly with the operator: a confirmation email, a screenshot of the setting, or a note of the date you requested it. The second is GAMSTOP, the national online self-exclusion scheme.
You can ask GAMSTOP (gamstop.co.uk) to confirm your registration and the date it took effect. That confirmation is valuable because it fixes the moment from which a Gambling Commission licensed operator should have refused you. The Gambling Commission states that participation in GAMSTOP has been a licence requirement for online operators since 2020, so a registered exclusion that was not honoured by a licensed site is a serious failure.
Offshore casinos licensed outside Great Britain sit outside GAMSTOP’s reach, which is why many losses occur on sites not on GAMSTOP. Your registration record still matters there, because it evidences that you had taken a clear step to stop, which is relevant to how your case is assessed. If you are not sure whether a site was licensed in Britain, keep the record anyway and let a check sort it out.
KYC and verification correspondence
Know-your-customer checks are the identity and source-of-funds steps an operator runs when you register, withdraw, or trigger a review. The emails and in-account messages from these checks are useful evidence because they show what the operator asked for and what you told it. If you disclosed financial difficulty, sent payslips, or explained where money came from, that correspondence can show the operator had information about your circumstances.
Verification messages also often carry timestamps that help build the timeline. A demand for documents the day after a large deposit, or a withdrawal held pending checks while further deposits were accepted, can be telling. Save the full email, including its date and sender, rather than a screenshot of the body alone.
Operator messages, terms, and marketing
Keep the messages the operator sent you and the terms that applied. Promotional emails, bonus offers, free-bet reminders, and reactivation prompts can show the operator encouraging play. Where these arrived after signs of harm, or after a request to stop, they carry weight. Marketing you received despite asking for a break is worth preserving in full.
The operator’s terms and conditions and its responsible-gambling policy also matter, because a claim often turns on what the operator said it would do. Save or print the version that applied at the time, with the date. Terms change, so the live page today may not match what governed your account then. Where you can, capture the page as a PDF so the wording and date are fixed.
Bank records and other payment evidence
Your bank and card statements corroborate the operator’s figures and fill gaps the operator’s records miss. They show money leaving your accounts, the running pattern of spending, and sometimes deposits to operators whose own records you can no longer reach. Where you funded play from savings, an overdraft, or borrowing, the statements help show the losses went beyond what you could afford.
To be clear, this is not a payment dispute with your bank. Bank records are simply corroborating documents in a recovery claim built on the operator’s conduct. Where money moved through a crypto wallet or an e-wallet, the same principle applies: the transaction history is evidence of what you funded, used to support a claim where the operator breached its duties, not a dispute with the payment provider.
What to capture from bank records
Download statements as PDFs covering the whole period you gambled, not just the worst months. Mark the payments to gambling operators if it helps you, but keep an unedited copy too. If you borrowed to gamble, loan or credit agreements and their dates add to the picture of affordability.
Dates, amounts, and a simple timeline
Across every record, two details do the heavy lifting: dates and amounts. A claim is far stronger when the story runs in order, so even a plain list helps. Note when you opened the account, when you first showed signs of difficulty, when you self-excluded or registered with GAMSTOP, and when losses continued anyway. You do not need precision to the penny. You need an honest sequence.
Write down what you remember while it is fresh, and mark anything you are unsure of as uncertain rather than guessing. An honest note saying “around March, roughly £2,000, exact date unknown” is more useful than a confident figure that the records later contradict. Recovery work depends on records standing up, so accuracy beats completeness.
How to preserve evidence so it lasts
Evidence has a habit of vanishing. Accounts get closed, inboxes get cleared, and operators sometimes disappear. A few simple habits protect what you have. Save emails rather than screenshots where you can, because the full email keeps its date and sender. Export account statements as files and store them in more than one place, such as a folder on your device and a copy emailed to yourself.
Do not delete the gambling account or its emails before your records are safe, even if seeing them is painful. If you need to stop the messages, filter them into a folder rather than deleting them. For new requests, put them in writing and keep your sent copy. The aim is a small, dated archive you could hand over without scrambling later.
What if your records are incomplete?
Many people come to us with far less than a full file, and a check is still worthwhile. Operators hold their own records, and a data subject access request can recover account history you no longer have. Banks keep statements for years. GAMSTOP can confirm a registration. A partial set is often enough to see whether a claim is realistic, and to identify what else can be requested on your behalf.
So do not rule yourself out because an inbox was cleared or an account is closed. Bring what you have, note what is missing, and let the picture be assessed honestly. If you want to understand the wider process first, our guides on how gambling loss recovery works and how to recover gambling losses in the UK explain what happens after the evidence is gathered. When you are ready, a free eligibility check will tell you whether there is something to pursue.
Where Clinton & Co fits
We are claims specialists, not solicitors. We help you gather and make sense of the evidence, assess whether an operator likely breached its duties, and where a case has merit we connect you with regulated legal partners who can take it forward. No outcome is guaranteed, and we will tell you plainly if we do not think a claim is realistic.
It helps to know what the regulator does and does not do. The Gambling Commission regulates operators and can act on licence breaches, but it states that it does not resolve individual disputes or recover money for consumers. Individual disputes with a licensed operator usually go first to the operator’s complaints process, then to an approved alternative dispute resolution provider such as IBAS. A recovery claim built on an operator’s breach of duty is a separate route, and the evidence above is what makes that route possible.
If gambling is causing you harm, free and confidential help is available now. Call the National Gambling Helpline on 0808 8020 133 or chat to GamCare (gamcare.org.uk). To block gambling sites across your devices, BetBlocker (betblocker.org) is free. You can also register with GAMSTOP (gamstop.co.uk) to self-exclude from licensed online operators.
Sources
- Gambling Commission, Licence Conditions and Codes of Practice (LCCP), Social Responsibility Code provision 3.4.3 on remote customer interaction: identify, act, and evaluate (gamblingcommission.gov.uk).
- Gambling Commission, “Online operators required to participate in the multi-operator self-exclusion scheme GAMSTOP from March 2020” (gamblingcommission.gov.uk).
- Gambling Commission, complaints and alternative dispute resolution (ADR), including approved providers such as IBAS, and that the Commission does not resolve individual disputes (gamblingcommission.gov.uk).
- GAMSTOP, national online self-exclusion scheme, scope and registration (gamstop.co.uk).
- Information Commissioner’s Office, the right of access (data subject access requests) and time limits for responding under UK data protection law (ico.org.uk).
General information, not legal advice. Clinton & Co Advisors is a trading name of Ramays TA/Clinton and Co Limited. We are not solicitors or a law firm. We connect clients with regulated legal partners.