There's this user, absolstripper,that commissioned a lots of people and won't answer to the mail about payment. He also blocked his account and no one can comment on it. He's probably run away with the approval sketches of many people,i just don't know.
He has taken my approval sketch too since he commissioned me.
Now it's the fourth day that i try to enter in contact with him,but since he blocked his account i can't send notes.

The question is,how can i report this situation on this site?
i have to ask to an admin\moderator?
it's the first time that something like this happen to me and i don't know how to act...