I have same problem with yobit.net but a few hours later withdrawal is working and i got my coins, if you still can't withdraw you should contact the admin in this forum, he mostly online everyday.
I have tried but there is no answer!!
You can't expect an immedite response from their site support. Tey are not answering tem. Last time I sent them a ticket it took 1 month for them to send me a response.
Men my problem is that i request a withdrawal of USD and there is almost 15 hours and nothing, that is not how can you run a business, im selling BTC and i have to pay suppliers, i cant wait for a month until they respond because that is the way they run their business, im asking them how long time does the fiat withdrawal takes but no answer, i dont wanna think they just run out of my money.
Please yobit ADMIN if you see this post please help me.