I got similar through my work ebay site. Have had a guy for over 12 months offering me £200 for an item I had on for £300. Said Items we sell to the trade at £175+ vat, so £210 before any carriage. He must have emailed myself and my colleague 8 or 9 times. He said he had a customer on for it (yeah right...) and only had £200 to spend. Got to a point where I basically said, Look, stop wasting your time and mine. The answer is no. You cant have it for £200. If that is all your "customer" has to spend, tell him to buy something else! I've also had similar problems with car sales, as have a few mates of mine. As has been said, It is really annoying that sellers can't leave negative feedback anymore.