From what I see on the conversation above, it seems that you'll not get your ETH back. Sorry to say, but it was your own fault and you did it in a bad exchange imho. Just like what others has said, forget it or wait for a miracle that they will process it as what you want.
This is not technically difficult, and I see the problem that they do not want to return funds using a user error as an excuse. I had similar problems on several exchanges, for example, I recently sent ETH when exchanging for ChangeNOW. It was my mistake, but they solved it within a few hours. Why can't YoBit do this? I am surprised that someone still uses these scammers.