How a casino checks big wins: stages and nuances of the procedure

A large win in an online casino is an event that always goes through an additional verification procedure. Licensed operators must make sure that the result of the game is obtained honestly, without breaking the rules and technical failures. The review is conducted both to protect the player and to comply with legal and financial requirements.

1. Automatic win fixing

All modern casinos work with a backend accounting system, where they record:

Time and date of the event;
Game name and provider;
Bet and win size;
IP address and device of the player;
The course of the game session on the backs.

This data is recorded in the transaction log and can be used as evidence in case of disputes.

2. Internal Casino Review

After registering a large win, the operator starts the standard procedure:

1. Reconciliation of casino and provider logs - the coincidence of information in both systems is checked.
2. Analysis of player activity - exclusion of signs of fraud (multi-accounts, collusion, use of bugs).
3. Checking for the use of prohibited software - autoclickers, bots or emulators.

3. Request for supporting documents (KYC)

Often, a large win is accompanied by mandatory identity verification, even if the player has previously passed the simplified KYC.
May request:

Passport or driver's license;
Confirmation of address (utility bill, bank statement);
Proof of ownership of the payment method (screenshot of a bank account, card, wallet).

4. Checking by the game provider

If the amount is particularly significant, the casino sends a confirmation request to the slot developer studio or other gaming content. The provider verifies:

Random number generator (RNG) at the time of winning;
Integrity of the game session;
No technical failures.

5. Financial controls and AML procedures

According to international anti-money laundering (AML) standards, casinos are required to make sure that the winnings are not related to illegal activities. As part of this review, they may request the source of funds used for bets.

6. Inspection period

Small and medium winnings - automatic verification and instant enrollment.
Large winnings - from 24 hours to several working days, depending on the complexity of the check.
Jackpots - can be checked for up to 2-4 weeks with the participation of several parties (casino, provider, regulator).

7. Possible reasons for payment delay

KYC is not complete or documents do not meet requirements.
Winnings are recorded in a bonus game with an unfulfilled wager.
Discrepancies were found in the logs of the casino and the provider.
An additional check is carried out for violation of the rules.

8. How to speed up the process

Prepare all documents for verification in advance.
Use the same payment methods for entering and withdrawing funds.
Play only in licensed casinos where verification processes are debugged.

Conclusion:

Checking large winnings is a mandatory step aimed at protecting the interests of the player, casino and regulator. The more transparent the betting history and the cleaner the gaming reputation, the faster and more painless the process of crediting funds will go.