Yobit is the worst exchange ever, DO NOT USE IT. Now they will not even let me withdraw!!! This exchange has had countless problems and accusations thrown at it. I've read through the past posts on this sub forum and yobit has been named countless times. Do not use this scam exchange. An exchange with Dice on it is fishy as hell.
post some screenshots of your account , what exactly they aren't allowing you to withdraw ? a specific coin or everything ?
yobit is shitty I agree , but to be honest I never had a single problem with them since I only use them with the big coins that never go maintenance
they handle the problems so slowly but when it comes to big main coins haven't faced any problems with them
so try putting more info here so others can't be alerted about it , don't expect yobit to notice you here cause they don't care about the forums