I think we can safely say this is an exit scam now. Do you know any way of tracking the bitcoins that were stored on the website? I am not sure what else is left to do in this situation. It is mind-boggling that someone can run away with other people's money so easily without facing any kind of repercussions...
It is safe to say that Betja website is dead now, website is not loading for days, support is not responding and they didn't log in in bitcointalk forum since July 13.
This is a lesson for all people to be careful with every new gambling websites that gets released.
If I hear any news updates about Betja I will post it here, but watch out for any new similar looking casinos coming out in future.
Stick to reliable and trusted casinos with good reputation.