well a guy sold me an amp that was supposed to be working but only 2/4 channels worked so i had to spend 70 to get it fixed. Of course he blames everything on bad installation. So i leave neutral feedback for him. Then he comes back and leaves me negative feedback just for giving him neutral. WTF. Now my pos feedback is only like 95. Im pissed. If i had known he was gunna leave negative i would have left a really bad feedback for him. Is there any why to get this taken back