Sold an iPhone 7 last month via eBay. On receipt the buyer said the home button wasn't working and asked to return (the home button was in working order). I asked them to check it was on as the iPhone 7 has a home button that only clicks when the phone is powered up.
The buyer didn't respond and instead just ignored me for the entire returns period.
I was told by eBay support to wait for them to return and then I'd have a chance to inspect the item to check if it was ok before a refund was issued.
The item got lost in the post but royal mail marked it as delivered. EBay refunded the buyer anyway (I was told I would have time to inspect it but the refund happened immediately when it was delivered).
Royal Mail has admitted fault but won't refund. Similarly, eBay are telling me to take it up with the buyer and are taking no responsibility.
I have spent hours on the phone with eBay and the Royal Mail, and have lost £300 too.