Although I am a reasonably experienced seller, I have yet to come across a winning bidder on one of my auctions who just didn't end up paying within the required timescale (for me it's 3 days). It looks like I might now have two of them at the same time! My question is this: if they don't pay/refuse to pay, despite me invoicing them and sending friendly, polite messages explaining the terms and conditions of my auctions, and I register a non-payment strike against them, can they still leave me negative feedback? I mean, the item will still show up on their 'items won' list right? What's to stop them getting in a strop with me because I've chased them (reasonably so in my book) for payment and then issued a strike against them? Surely they can leave whatever feedback they like about me even though they are 100% completely in the wrong. Anyone had any experience with this?