10-29-2021 07:01 PM - edited 10-29-2021 07:03 PM
I sympathise. I recently had a buyer who got in touch about a minor fault with a calculator that I hadn't noticed when testing it. Of course I took his word for it and was left with the choice of either giving a full refund and paying for return shipping or giving a partial refund. The latter is clearly what he was angling for and the cost worked out about the same for me. It was only afterwards that I noticed he has a history of squeezing out money for claimed defects. One of his typical feedback comments is "Issue with calculator rapidly and generously resolved by seller". I counted at least a dozen of these.