Good Saturday people!

Done stupid mistake, as I was tired and wanted to gamble a little bit. So sent over 300 USD of (Huobi: Heco-Peg USDTHECO Token ) to Bitslers Tether address by mistake. Tried to contact them as I would only need the private key to be imported into houbi and recover my tether. But they saying it is impossible.

I was always thinking the crypto betting sites have private keys of the wallet addresses? Or is it some other reason that they cant be asked to do it? Im a Gold 3 tier aswell so was hoping to get some LOVE and support. Dont think ill get it back though.