When you send Bitcoin to a casino, the deposit is not credited until the network confirms the transaction and the casino own confirmation requirement is met.

A confirmation means a miner has included your transaction in a block. Each additional block built on top of it adds another confirmation and makes reversal practically impossible.

Most casinos require one to three confirmations, which usually takes ten to thirty minutes, but low fees or network congestion can stretch this to hours.

If your transaction is confirmed on a block explorer but still not credited, the issue is usually the casino deposit address, minimum deposit, or a stuck processing queue.