I had a different problem on ebay once.  I sold 
something to the high bidder and then before 
they even received the item they contacted other 
people that had bid on the item and offered to 
sell it to them.  It made it look like I was 
working with the high bidder to get the price up 
or something.  I ended up contacting the person 
that won and told them to cut the crepe out 
becaues it was making me look bad!