So I sold an item the other day. The retail was $370 and my price was less than half that. A buyer won it, and now she emails me saying the shipping costs are too high (she's in Belgium). I responded by saying those are the estimates I get when calculating and I'm even decreasing the amount by a few dollars... She emails me saying "Give me the USPS website, I'm going to calculate it myself and tell you." I linked her the website, which clearly shows that my charge is less than what's on there. She hasn't replied yet and it's been a couple days... Wondering what to do. I just had an unpaid item dispute opened last week because of someone who didnt pay me... Don't want to have to do it again.