Unreasonable buyer, does not recognise a 'level playing field' and will not disclose feedback left by sellers. Leaves negative feedback when something is not the way he likes, even though he's received all his money back. Best advise is to block the guy as soon as you can before he buys something from you, leaves you out of pocket or lowers your rating. If you are reading this after he's bought something from - keep his money for a month, use it well and refund in the end.