OP You raise an interesting point here, as coins particularly the ones you have sold are only covered by Royal Mail's Special Delivery service for insurance purposes and loss etc.
They are on Evri's prohibited list, and Royal Mail's unless sent via Special Delivery.
Simple Delivery does not cover for this scenario as your items are obviously under £750 in value but well over the £150 threshold for items on RM's tracked services.
dave@ebay , kat@ebay marco@ebay
In this instance how does a seller send their items correctly? Or are ebay saying they will cover a £400 item in the post on a tracked 24 service? When Royal Mail wont cover it if "Joe Bloggs" was to send the item?