He's bought two items totalling about £8. I choose to only send parcels overseas using Royal Mail International Signed For Small Packets which is about £12 in this case. He's saying it's far more than he's willing to pay but he never contacted me beforehand to ask about shipping.
I don't know what to do now. I was happy to get rid of these items but I don't want to have to send them by post that isn't possible to be tracked at all.