I sold a pair of Louboutin open toe wedges on eBay recently. They are a size 39. I'm a 8.5 to 9 in US sizing. I can fit the shoes fine and I have wide feet. Buyer states she is a 8.5 but can't get her feet into the shoes at all and wants to return. My listing states I do not accept returns. This is my first sale on eBay. Should I grant the return or stick with my listing and not accept the merchandise back?