Don't play at sites bitcasino.io he is a cheater who often hold a raffle ticket, a lot of people who have won the lottery but not paid .. after I read they say that the winner has been using IP (multi-account), many of those who protest against the victory, one of them is check this out:
Their brainchild sportsbet.io have had similar issues in the past,especially with the raffles.Known to the fact that they are run by a particular agency which uses same marketing skills,you should have stayed away from them.
That's how they their shills work,
I have use there site whitout problems? i never take bonus becures its almost bad gambling to get the bonus, soe better luck next time
You may wish to warn members on their official thread
https://bitcointalk.org/index.php?topic=395617.1640