You are not scam by yobit, you are scam by someone, it's only proven a scam by yobit if that person who recruit you is connected to yobit.
May I ask what coin did you deposit to yobit because if that is crypto you can withdraw it anytime without condition.
I think best is to stay away from anything that has to do with Yobit either directly or indirectly because it seems Yobit has been cursed to have scam activities surround it, I have heard lots of people complain about Yobit, although I have once used Yobit when I just started crypto investment and they didn’t disappoint me for the little time I spent with time, so I wonder what caused the sudden change to become bad from being good.
The one I hope will not really burnt people is the IEO they are conducting, I wonder how Yobit will be able to manage those IEO well when they have not confidently handles their own house, what guarantee would they then give to investors that the projects are not scam projects too.