Problem was the buyer wanted a refund and wanted me to pay for postage after I refunded. The only way I could get them to send it back was to offer reimbursement. But fair enough since I was stupid enough to offer it then I'll follow through.

The main problem is I'm struggling to think of a way to avoid negative feedback right now. Refunding is kind of an admission of fault already, and letting them know the item is working's only going to complicate matters.

Thanks for the reply.

First time I've had a problem in over 200 sales, and I'm pretty much guaranteed a negative feedback. Sigh. 😞