I am sorry if i dont reply fast, i keep refreshing hot wallet(just sent 2k coins more).
At the very least you should promptly address the question raised by many here, i.e. why you are refunding deposits but not the actual stolen bets. E.g. Stars here stands to lose 20 BTC that seems to be rightfully his/hers.
some balances would still end up negative even after that incident, while some others would be positive. If i was doing that, then it would be another round of"oh if i won that bet i would stop". That is the best solution i can come up with.
I'm sorry but this is just wrong. What difference does it make if someone's balance is positive or negative? A player placed a bet and should have won a certain amount of coins, but instead the site made him/her lose. You should rerun the bets as they should have happened and refund the difference in the resulting balance, not just negative accounts and not just the initial deposit. Also I think you should probably shut the site down or at least halt gambling, give yourself some time to do a full data audit, code review, whatever you need to do to. I'm not sure I understand why you are asking players to file support tickets for refunds - you should be able to determine who's affected and refund proactively.