It does seem pathetic that trying to explain how a return should be done,which only involves clicking a few buttons should be described as "Hiding behind ebay rules", that is what rules are for to get correct procedures to be followed.
If ebay do not understand such a simple thing there is not much more you can do BUT add follow up feedback leaving carefully worded comments to the effect that "buyer wants will not open a case to get refund".
What I would say is that now fb has been left there is nothing worse he can do. Unless he opens a case do not refund or discuss a refund. If he can't follow proper procedure then he does not deserve a refund.
Only by completing a case would you get the selling fee refunded and without a case then the buyer cannot escalate.
Add this awful buyer to your Blocked Bidder List and select also to block messages. (That does not have immediate effect, but will block any messages later on).
