Ripped off by A-Bodies member!!!!

He and I did some trading last fall. I sent him some of the larger port 360-1 Indy heads and he was supposed to send me a 4-bolt main R block. He sent me a two bolt block, so I didn't get nothing, but when I asked him about it, he claimed I could always send it back. I knew that if I did that, I would end up with nothing.