I've had very few international sales so I was surprised to see that this morning I sold a book to a lovely lady in Denmark. I packaged it all up and went to the post office to find that the cheapest way to mail it was going to be $8 more than what she paid for shipping. I sent her a messaged her giving her the option to pay the additional $8 or canceling the order all together.
Has this ever happened to you? If yes, then how did you handle it?