How you will do it? let me guess... the user sends the balance to you as a tip and then you walk away with the money withdraw it and send it to the user's wallet.

If any user has a problem withdrawing their money on bc.game the only way to fix it is by dealing with the site support, there is nothing that a common user could do to help other users. This kind of problem is between the user and the casino, and a third party can't do anything about it.