I did and there's no reply!
Don't worry he's a lot like Qtan, always busy but he will eventually contact you. You are definitely not the only one pm'ing and emailing him. He gets hundreds of messages per day, I don't know about you but I would give up responding after 40.
But he does respond to everyone, just not immediately.
I got my PBT set from him last week and he never responded to my pm's but it's the one's I wanted and all is great. Just know that he isn't an immediate responder but once money is handed over he gets the stuff made as soon as possible. The postage is dirt cheap hence no tracking is provided but his stuff gets through.
I've never had a lost shipment from him.