I sold a book on amazon marketplace for £12 and posted it at the post office with a proof of posting. I put a return address sticker on the back and to anyone it would be clear which address to send the item to.
Anyway, today I received the item really battered in the post and as the book was sold as 'like new', it's now 'good' at best. Any ideas what I should do? I'm going to the PO tomorrow.