you shouldn't be held hostage like that. It's a disgrace and this really shows that there are flaws in the system. Your 100% rating should not be allowed to be damaged by a person who obviously is out to cause trouble. How can we trust feedback ratings if we are afraid to tell the truth like this?
The seller should have equal rights with the buyer and not be penalised by scam artists.
This is a horrible situation and the policies need to be changed as it is far too open to dishonesty. Bully boy tactics really seem to work and the feedback system needs a complete overhaul before it becomes impossible to tell the honest members from the ones out to make a quick buck.