Not exactly a delivery issue, but still a plaudit for Ebay.
Last December I booked a holiday rental for one day/night in London and had to pay £200 deposit (damage waiver) and £18 part rental, the rest payable on arrival.
On arrival, the occupiers had never heard of the "landlord" as they were the owners and not in the rental business.
After reporting this incident to Ebay/payPal, I was refunded in full within a week or so.
Ron.