Yobit manipulates its crypto prices. I have seen their programming do this...both create excessive pricing for no reason and then hold down pricing on currencies. BEWARE....STAY AWAY FROM YoBit. There are many other reputable exchanges to trade on 
The mad face means you're serious about this.
Just like the comment on top said, you need to gather proofs so people can really listen to you. This is a pretty good channel, with a really wide reach to publish those kind of results and make the community better by discovering and pointing towards scammers.
I personally don't know that exchange, but make sure to bring proofs. I will be one who will support that stance if i see your post.