Was there a Dispute opened?
That may be useful.
However one reason I am such a proponent of Cookie Jar Insurance* is that I am covered against the odd refund, warranted or not.
After 15 problem -free years, having an unwarranted refund stings, but should not be fatal.
It's business, not personal.
A couple of suggestions.
Send a Paypal invoice for the either the amount of the original payment or for the selling price w/o shipping. This looks more official than a beggin message. Works about half the time.
For the time being, extend your Handling Time to five, seven even 30 days, which will push the last estimated delivery date that much farther forward. Obviously you would still be shipping promptly, this is just to cover the slowed shipping systems we are all working with.
This might mean you lose TRS status, but that is a stupid badge and a10% rebate on the 10% FVF on your customer's payment.
Is it worth it?
* which is just setting aside a tiny part of every payment as a self-insurance premiums for inevitable problems, some of which will be my mistake, some a disagreement with a sensible customer, and very very few some sort of scam.
