Well, I had an experience when I made a deposit and nothing happened, here's the point of online you take all the risks. The most unpleasant thing is that you can still be blocked by everything.
I would call it your fault since you decided to use a platform without proper research and understanding of their background instead of choosing a casino that is already trusted within the gambling community and has a good reputation. Scammers are always waiting for prey like you to choose their platforms and make deposits so that they can live their lives easier.
Where did you find that casino by the way? Were you actually not aware of the famous crypto casinos or you just wanted to try something new? And did you contact their support? I guess they didn't respond, and if they did, what did they have to say about it?