Well I registered at this site this weekend and was having fun losing a total of 1.5 btc so far I think, haha. Everything was going great I am even on a leaderboard or two.
It was all fine until I deposited 200k doge to play around with. I started a slot game and when it loaded my mouse was unresponsive and I couldn't click anything. As I was about to click the exit button I see my credits balance drop from 200k to 50k instantly. I was in the game for less than a minute so it is obviously some kind of glitch. I contacted support and have not heard back it has been days I am pretty disappointed as I really liked this place and planned on spending a lot more here just not getting ripped off without any site staff giving two shits about it.
Be careful guys.
EDIT: oh yeah heres proof in case anyone doubts me. Look at the timestamps.

We have not received your email it seems. We will check out your problem as soon as possible and contact you back. Are you sure you contacted us at
support@fortunejack.com? If you are, write to me in PM your username and when this happened and we will sort it out.
P.S. There is no reason to think we are trying to steal money from users like you. Just recently, when the withdrawals had problems, we not only refunded the money(for them to withdraw again safely) but also added them bonus 10% as compensation. We are trying to be fair, there is no reason why we would try to avoid issues such as these.