I tried, once, to sell something on eBay. I specified clearly that I would only ship the item to the UK. Someone bought it with a shipping address in Portugal.

I tried, once, to sell something on eBay. I specified clearly that I would only ship the item to the UK. Someone bought it with a shipping address in Portugal. I refused to ship it. eBay "rejected" my refusal. I sold it on Gumtree instead. eBay charged me success fees for the item, since it had "sold". eBay refused to communicate with me about refunding these success fees, so I filed a chargeback with my credit card company. eBay closed my account because of the chargeback.