Thanks for letting us know this does not sound good and to be honest just sounds like not very good excuses not to pay, op your site has been up awhile and if it is provably fair what could possibly be the problem of his wins being 'exceptionally strange' could you give more details please/?
How much is owed?#
I wanted to come and play here before i deposited though i look for reviews and found this i will have read threw most of the thread to make sure people get their withdrawal because if you don't get it it is hardly worth it.
Is this just a one off?
At the first I did lose big time, but at one point I worked out a system to play with. I'm playing by the rules, I'm not using a bug or anything. But I did had some winning streaks and after a couple of payouts, he now starts complaining about it. He owns me 1.5 BTC now and why would he keep the game online if he thinks it's bugged?
Nice a system is not a cheat though is it so it, seems very suspicious that he is holding back your winnings from an outsider and you are 100% right if he really thought there was a bug/cheat/glitch he would ask you to tell him for a bounty or just shut down until he found it himself..
In the scheme of things that is really not a massive win so what happens if a whale came along and won 10-20x that much?
Luckily they won't though because they have seen how the smaller withdrawals are taken care of they will not risk it as i won't risk even a smaller amount until this gets sorted one way or another.
Good luck getting your btc bud
EDIT: he has shut up shop until it is sorted that seems better.
it still pay ?? 
although I have not deposit lol