Olezippi,
I started a new thread and placed a link in the eBay and Craigslist links forum for the horn and it appears to be working. I did not see the problem, but I did not actually try to contact the seller. (I pulled it up but did not go through with contacting the seller it since I do not actually need the horn.) If it does appear to be a scam though then eBay needs to know about it.
Good luck.