@docfish2u: I will ship it tomorrow with tracking. I actually always ship with tracking, even when I trade. And you're right, it does calm the mind. That way I'm sure it'll arrive. About the seller of the other pin, I already asked them but they don't hold pins because they're looking to earn fast money to pay for school (I think). And that's so nice of you, thank you! I will try to PM you today. I did ask them for a better photo of the pin because now I'm paranoid lol.
@starry_solo: As far as I know, my international shipping has to get a signature because if you aren't home, they will take it back and you have to get it at the PO. I do know that Paypal protects us, my mother has had a lot of refunds from Paypal, even outside of Ebay. I'm not sure about opening a case with Paypal yet, I've never done that. The seller promised a refund when they receive the pin, so shouldn't I give them a chance to fulfull that promise? I mean, the transaction itself was very pleasant and they were very nice about it because they knew it's my grail. They also shipped very fast before the holidays. So it seems so "mean" to me to open a case with Paypal while they promised me a refund. But IDK, I might be soft haha.
Anyway, I have the seller's address now and we talked about it. They apologised again and promised my refund when they receive the pin so we'll see. I can understand why they first want to receive the pin, because I'm looking at this from two sides. I also want to say that I really appreciate all of your help. Thank you, everyone.