Sold an item which the buyer says is faulty. I tested before sending. They’re asking me to refund before they send the goods back, I’m not willing to do that as I only have their word it’s faulty. I have said if they send it back and it’s faulty I’ll refund. Basically want to know if I’m ok sticking to my guns and not refunding until the item has been returned. Couldn’t find anything in the terms and conditions about it