eBay

I had someone buy some used coin for me. And now he says one of them has a scratch and wanted to return it. I don't accept returns. Can they force me to take it?

I am new at this and placed an item for sale. Someone made an offer that was more than what I expected. I accepted the offer and then got a message to contact them directly. I did not. Instead I canceled it. But now it's showing that I still had a $3...