Another accusation against Rollbit and another hiccup because of allowing multi account.
If that's the case, how was the same address used again? Even if it's the same user, that shouldn't happen.
It seems like you are assuming that OP is telling the truth about using the exchange he mentioned, which made the mistake of giving him a reused address. Let's say he is lying about that, and he had multiple accounts that he used on Rollbit and ended up withdrawing from those accounts into the same ETH address. It's a totally different story then.
Mind that sportsbook and casino abusers already know that there is a place where they can go and cry, manipulate words and get sympathy. The members of the place have enough authority to the crypto sportsbooks that they can create good pressure and get advantage of their misleading accusations.
Just look at the topics created on the board, almost all casino have at least one accusation by newbies. Having said that, these days I only pay attention to any accusation that have very well presentation of the back up evidences.