This site's definitely a scam. I deposited 0.15, played up to 0.4853 and got an error message when I tried to withdraw. Elegido produced some fake DB entries when I complained. He eventually offered me 0.12 on my 0.15 deposit but I refused and we haven't reached a solution. I can provide the screenshots of our conversations on request.
When did it happen? Since OP told us not to play in his site at May 31. So, if you deposited and played after his warning means that its your own fault.
But if it was happened before his warning, means that OP should give your money back + your winning.
And yes, providing some proofs is even better.