Thank you all of you for your valuable answers.

I have sent a PM to the Betja representative on the forum, we'll see if he gets back to me. But as you said, this doesn't look good at all, I have asked friends from other countries to access the website, to no avail. Also, their customer support on telegram was actually deleted (I wasn't blocked) after I inquired about the withdrawal.

At this point I am not sure what to do, looks like they just took down the website and ran away with the money... Awful, really.