Good luck! I hope your issue with bc.game gets resolved as soon as possible. It's the first time I've heard about such a problem on BC.game. What if you don't even realize your USD is gone? It's no longer in your account. Hopefully, if this gets settled, you'll receive some compensation. These kinds of errors are difficult especially if you have a large amount of money in BC.game and you don't realize it's being deducted. Hopefully this kind of problem won't happen to anyone.
This is most likely a display problem in the account, as BC.Game has already confirmed that the USD have been credited and should be available to the account. This also happens from time to time with exchanges (we have just discussed a similar case with Kraken in our German-speaking area), so it should not be that unusual.
However, I think it's very good that the support team reacted quickly and has already initiated the solution steps. Of course, it is still annoying.