The best solution to this is to contact the support, all we can give here is just give our suggestion and opinion but it's only the exchange itself can answer you. You are sending a big money but you did not double check everything, we are in crypto man where transactions are irreversible, I am not really sure with USDT but most exchanges would tell you to make sure it's the specific coin or token, otherwise you will loss your deposits.
IMO, if transactions are successfully deposited to their account then I guess you have a chance to recover it, but it's up to the exchange if they are willing to help you, if so, they will give you the proper procedure to get your money back.
Maybe it's time for yobit to participate here and change the image of the public a little bit on why they should not be called a shitty exchange.
Absolutely right, the amount was successfully deposited to yobit's account that is binded to my yobit account as USDT address and i beleive ETH and USDT wallets are interconnected (one) , let assume you have an etherscan ERC-20 wallet and you want to use it personally for only USDT deposits and on the other side you are allowing your friend to deposit ETH also into the same wallet, so this means your friend doen't hold control over the wallet but only you have control.
Thus it is pretty much possible for yobit to recover my ETH but they never reply to a client's issue.
This is a worst exchange i have never experienced before, this exchange have no right to stay in market