Long story short: sold some stuff that came back and bit me in the rump. Amazon feedback rating took a nose dive and I'm at 75% out of 100. Can this be salvaged or should I consider a new account? I've contacted the person who sent the negative but I have a bad feeling he's not going to play ball. Any personal experiences of people getting out of a mess like this and was able to continue selling? Would a low rating like mine dry up the sales from people not trusting me?