The biggest problem with yobit is that they are slow in reply support ticket, and they sometimes willingly do not reply to the member when they try to hide their fault or mistake, like when their wallet i dried and money is not sent to the user then they do not try to inform their member that wait a litle their wallet is dried and they will fill up/pay as soon they get some money.
The only way to resolve this is let them know your business matters.
If the majority are getting the same problem with slow response - they will have to fork a pretty penny to increase their support staff and until in the mean time you just use other services that are open to you I guess.