Read and weep:
Returned the item tracked and registered (signature required) and sent the details to Ebay. Since the online tracking page doesn't show the destination address, just the fact that the parcel has been delivered, Ebay asked me to scan the proof of postage.
So I did.
The proof of postage shows the tracking number, destination country and destination post code (which matches the seller's details).
Now I got a message from Ebay that this doesn't prove the...