too many questions:
1. are your games provably fair?
2.if they are, how can you offer a 5% deposit bonus? your house edge must be at least 6%
3.why am I getting invalid sign up request every time I'm trying to register with a login/pass combination?
4.your rain abuse rule doesn't make sense, really free coins are free coins and you cannot ban people for not using them up when they want or do not want to
5.how much do you charge for bitcoin withdrawals,says nothing about it in the Help section
6.what are the coins( the site's currency) and how much is one coin in btc?
etc. etc.