Still no response from their support about my withdrawal from them, and today I checked my account and got. "Your account has been deactivated. Please contact Administrator".
My guess: they lost money on trades while Gox was Goxing people, and now they're passing this loss on to "suspicious" accounts.
Same here! And Seal ignored me as well. He is somehow related to btc.sx, looks like he is part of their team. Guys at bitcointalk told he is honest and helpfull. pff..