Hi. I own a classified advertising site in the UK. A site member recently brought to my attention the fact that someone was selling an item on my site and claimed they were an authorised seller of my company.

To cut a long story short I am now posing as a potential buyer of this item and am in communication with the seller. We have progressed to the point that he has provided me with an invoice with my company name on it . The invoice states that the sale is protected by my company and that he has £x,xxx lodged with my company in case a refund is necessary. He is asking for the money to be paid by Western Union which of course is a scammers first choice!

I am not sure of the location of the supposed seller. The IP adress registered with my site is showing him as using AOL from New York. The IP address on his emails shows him located in Romania.

Basically he is ready to commit an offence by trying to defraud me of a substantial amount of money. I am unsure as to whether using my company name on a spoof invoice constitutes identity fraud as my company address isn't showing. He has used my logo though.

So who do I report this to? Is there a specialist branch of the UK police as I can't find any info. I did ring the Met Police for advice but they didn't bother calling me back. I really want this person found and prosecuted. Wishful thinking maybe but I have him dangling on a hook ready for the taking!!