Most likely this is who was trying to scam this person by posing as casino support in Telegram:
If anyone out there can help me i will pay 2000 dollars out of the winnings to that person, but i have to actually receive the winnings first
With that desperate message, you give room to more scammers take advantage of you.
I don't think anyone can help your case but the casino itself, but that's just my two cents.
This is by far the worst birthday of my life. the telegram guy tried to extort me said he would buy my debt with the casino for $15,000 if I just let him into my account I told him he was smoking crack and I took insult to the thought that I would do that he's got to think I'm a dumbass I mean I know I'm a dumbass in a lot of ways but man that's just an insult for him to think I would ever give him my login information.
Going to need a bit more evidence to solidify the connection before taking any action.