Yes they are thieves 10 BTC in my case.

That's a lot of bitcoin. Have you recovered it or it's still on their exchange?
same as bittrex!. It surely is. just stay away from yobit almost all wallets are stuck and your coins will be there forever
They are starting to become crowded so they can't cater thousands of users within the day.
I bought ecash on YoBit using some of my Bitcoin but my balance is wrong by a large amount.
The order history is correct but the balance is wrong. I'ts been 4 days and still no response from support

Try to send them a ticket about it.
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I looked at my Yobit Codes transaction (not knowing what it was at the time) and there is an entry for a transaction that was not authorized by me.