My first time hearing about such an exchange. Why do you even trust such non reputable exchanges which such a large amount in the first place yet we have the likes of binance, kucoin etc?
It's not my money but i already feel so sad for you.

If they are scammers, that's a very decent amount for them to make an exit scam. I am giving them about 24 to 48 hours to respond, or I am going to tag them