Okay so here is the deal. I sold a bag to a buyer almost three weeks ago and it was delivered on the 21st of April. The buyer contacts me today saying they need to return the bag because it smells of smoke or perfume. I have never in my life smoked, nor does anyone in my house. I also do not wear perfume, let alone spray enough on a bag to make it smell like perfume. I personally also think the smell of perfume is quite different than the smell of smoke but that's another thing. Anyway the buyer is demanding a full refund. It has been two weeks since they have had it, and they admitted to trying many different things to get this "smell" out, so I honestly don't feel comfortable just giving them a refund. What can I do in this situation?