I think the amount of money in my account is wrong!

In case you think the amount is lower than it should be, contact the casino support and they will tell you what must be done next. If you really lost money, they will try to help you reclaim it. If your account balance is higher than expected, and it was a casino mistake (as unlikely as this is), be sure that it will be discovered and fixed ASAP. In any case, you cannot be held responsible for that mistake, and will likely not complain.