What's wrong with yo2?

Last saturday Yo2 decided to update wordpress. The announcement says that users shall be able to login into their account again by late sunday. But it is already Monday and I'm still unable to login in. My blog has been updated for three days. What am I gonna do? I know I use Yo2 for free. But I think I have the right to use their service since I'm one of their customers.

PS: I had ten classes today, from 8 a.m. to 8 p.m. , I feel tired, really now! so I'm not in the mood to write anymore today. I'll just stop here.