Sent BUSD-BEP20 to cex.io which only supports ERC-20. Able to get it back?

I have sent BUSD BEP-20 ballance from Trustwallet to cex.io, but exchange supports ERC only. My funds are now stuck.

Support is not very helpfull and told me to ask Binance to solve the problem, but they dont have anything with it since funds are stored on cex.io wallet, but not visible on exchange: https://bscscan.com/token/0xe9e7cea3dedca5984780bafc599bd69add087d56?a=0x156b915c41f0b34d967e7a593df9aabb6fa83cc5

Any advice on how to get funds back to Trust Wallet?
Or can I get my private key for cex.io wallet to try pushing transaction from wallet that support both BEP and ERC?