I bought an item that I thought was something different than it was. Now I would like to return it for a full refund. The listing says 14 days money back as long as the buyer pays return shipping. I'm willing to do that. I asked the seller and they said that they are happy to do that. However, they say that they are going to subtract the Ebay and Paypal fees they were charged to list the item and whatever's left over I get. That's not a full refund. Can they do that?