Unfortunately I am in a similar situation, but with another Chinese exchange. We lack clear cut escalation model with support or outside authority intervention because of the decentralized nature of blockchain.

I have a feeling despite their open nature, blockchains will see more such scammers who will emerge with cruel intentions, while trading companies will remain neutral or with business like intentions (as always). This leaves the likes of us in the cold. Hope my upvote and resteem will help in some way for you.