Hmm, if i was to guess, I'd guess that he placed orders from more than one vendor, and possibly assumed that the order he was questioning was from you.Have you tried the simple expedient process of sending him a PM pointing out that is not your product, and could he have you confused with some other vendor for any reason?With hundreds of vendors on here, a user might not think of going to his accounts page and clicking on the actual transaction to obtain the name of the vendor for each order.It could be more a case of accidental stupidity rather than malicious intent.Edited to add a cousin to Occams razor:Hanlons razor: Never attribute to malice that which is adequately explained by stupidity.