. When I cashed out I was asked to send in an ID and proof of address. El depósito del. I won £15, playing slots. The player can reopen this complaint at any time. Consequently, we are unable to investigate further and have no choice but to reject this complaint. 22nd August: I deposited £ at Sportingbet Casino. The complaint was resolved as the player received his deposit. The player's deposit was not credited to his casino account. Considering it has been over a week, customer service seems non-existence, the complaint process offers no certain and I have heard nothing back since the case.