I sold a refurbished macbook air 5 months ago on eBay. I had just bought this directly from the refurbished apple store and only used it to boot up (I bought it for a contract which fell through). Now the buyer is claiming the macbook no longer works and an authorized apple dealer is stating that the device has been tampered with and needs £500 to fix.
This device was certainly not tampered with before I sold it.
I am very concerned that the seller is angling toward a refund from paypal and returning me a macbook that no longer works.