Ah yes, I have grown all too familiar with the "tax-and-discount" scam.

It's worse with international buyers (particularly from parts of the world with "Haggling Cultures") who'll have something sent to — for example — China and then fabricate some "not as described" reason to want to return the item, KNOWING that eBay rules require sellers to pay for a "not as described" return... then it is followed by a message that says "I can keep it, but just not at that price," along with a request of maybe a $150 discount that "just happens to be" the amount I'd have to pay for a return shipment.

I've had to BLOCK selling to large sections of SE Asia and the FSR area for that reason... which sucks, because there's a lot a money available in those areas... oh well, it's a scammy world.