usually if you use a qt wallet just look in transaction window and then double click on the transaction you're interested to know details, there you find your tx id,
did you use qt wallet or a third party??  remember that updating the qt wallet is mandatory because of the 51% attack on the blockchain;
if yobit didn't receive the transaction there's no way to read details about it so I suggest to open a ticket with tx id of your wallet




Thank you! I understood everything now