Wow, sorry, but you have FREE POSTAGE and also PENDANT in the title. And the item is not a pendant and it is not free postage. I don't think your buyer is wrong to be upset. I'm sorry I can't just say what you want to hear, but I really think you are in the wrong, way in the wrong.

If you are going to sell internationally and charge them postage then you cannot have Free Postage in the title.

And if you list something as a pendant then it has to have a way to be hung from something, whether it's a hole or a bail attached. A gemstone with no hole is not a pendant. Sure it can be made into a pendant, but it's not a pendant at the moment.

I don't think you are a bad person I just think this particular listing is very misleading. You have to remember that a lot of people only read the title and look at the photo, that's all, they don't read the description. So the title has to be spot on.

For your sake I do hope she doesn't pay and you can wrap it all up soon