Must praise EBay. I use Ebay very often, used it over 300 times since I started.
Never had a problem that was not sorted quickly by the seller concerned without getting Ebay involved.
Until now !. Ordered a DVD which turned out to be not payable in the UK, contacted seller, no response. EBay offered to open a "Case" which they did, within 2 working days they had investigated and found in my favour and refunded the total cost back to my Paypal account, no need to return item.
Really can't ask for better, EBay has to be the safest place to shop on line.
For my hobby, I often purchase directly from China or HK, no problem whatsoever, slightly longer delivery, but that is to be expected.