eBay feedback really means nothing. That's a shame
@Silent_Scone Like I said, I know what it's like when you think someone is using eBays protection to do you over. Feels bad man!
An alternative, is that there's nothing wrong with the CPU and that he has just had a change of mind and wants his money back.
I think buyers of used PC parts are a certain sort of special from what I've seen. The AMD 290 I sold was nothing but trouble. I sold it initially to a chap, I paid for a courier and then before I'd sent it he contacted me begging for a refund as he had just gone and bought a new iPhone but needed the £170 he'd paid me to get him out of his overdraft.
I was like "WTF". I even contacted eBay and they said "Since you said no returns, you're fully entitled to deny him the return (even though you've not sent it) and post it"
I then asked them, what happens if he gets it and claims it's faulty. They said "Well if it's faulty then you will be liable to refund him and have the product returned".
I didn't fancy the hassle so gave him all his money back (he even proposed me giving him a partial refund, but I figured I don't need £20 that badly etc etc).
In the end I listed it again but for £30 more (it sold in hours the first time round) and it sold the next day to the chap who had a dodgy PSU.
I think eBay's policy is fair, just because you or I are not official traders/merchants doesn't mean that buyers should suffer. This is exactly the type of thing Amazon goes through when someone sends back a 6950X box with a 2500K in its place. They have to issue the refund because policy and it's less trouble, but really it's some scum stealing from them. The alternative is something like the Friday ad with no protection. It's just one of those things really, I'll still sell on eBay because largely it's an easy experience for me, but I am questioning whether it's worth it for PC parts and whether I'd be better off just trying to flog bargains to family and friends.