there are many complaints about them, obviously, they are fraudsters. here should be taken as soon as something to remove this scam.
There have been so many complaints about Yobit, and that for years now, that people have to ask themselves who scams who here. If you send funds to an exchange that's super shady, you're playing Russian roulette with your funds, period.
Sure, it sucks hard that OP lost money, but come on, it's known that exchanges like Yobit thrive on people they keep ignoring in the hope that they finally drop their case and accept their loss. They do this to tens of thousands of people, where most of the amounts concerned are too insignificant for people to publicly complain about, so the number of victims is orders of magnitude higher than the number of complains on internet.
They have something they call "Investbox" where it is possible to make money without doing anything. Unreal percent of profit and attracts greed to "easy" money. That will always be.