I have withdrawn some mBTCs from the site and the process was simple, easy and fast (and I am saying that form my personal experience, not because of the signature I am wearing). Are you sure you are not confusing betcoin.ag with betcoin.tm?, I am not saying the later is a scam, but about two weeks ago there were some accusation of shady things going on there, and, at least by the time, the admin had said nothing about it (my experience there was also good, though).
No i was talking about betcoin.ag. <<< I have visited the betcoin.tm but they have no support or phone number so it is kind of sketchy.