I'm sorry, I'm not siding with the casino or anything, but where is the scam here? Purely based on what you wrote, it looks like you were fired in an abrupt and insensitive way(at least in my opinion), but no scam has happened. That being said, you saying they "fabricated excuses" can be concerning, but there is no evidence of that from your post, so it doesn't really hold much meaning.
They are refusing to pay owed wages plus the two week notice period payment and are ignoring communication now. Obviously these were contractual obligations that are being ignored. Being fired doesn't bother me i wanted to leave for a while, but being robbed does bother me.