Can someone confirm that the site is unavailable? Did the guy really run away with my $50 deposit??
You need to prove your innocence, you've been accused that you have exploited their game so it's going to be difficult for you to get your money back unless you give a proof of innocence and if they're willing to pay back if it's verified.
Do you believe that he exploited the game while OP is not providing any evidences for the accusation against him? If you are a gambler and you are accused to do such thing but the casino do not provide any evidences and do not try to resolve it as fast as possible, what will you do? We need to use our logic to see the whole issue from both parties (not from one side only).