I don't know if this is too late, but, at the beginning of March I sold a pair of jeans to a guy in Israel off of eBay. He agreed to shipping via USPS First Class International instead of paying more for Priority with tracking (I should've known better at this point). So, I shipped them out, took a picture of the box with the completed custom's form, with the postal employee holding the box, kept copies of the receipt from the purchase of the postage, as well as my copy of the custom's form. About a month later, he messages me and tells me that he hasn't received them and to give him a refund. I, in nicer words, told him to piss off and contact his local custom's office since I had proof of shipping. I gave him the custom's number and left it at that.
Couple days later, he opened an eBay dispute. Let's just say that, despite all of the proof that I had that I had done nothing wrong on my part, I lost and had to refund the full amount (including shipping). I was absolutely furious.
Guess what? The guy isn't an eBay member anymore. Gosh, I wonder why.
I made same experience with a member from here.
And in my case I shipped them with tracking and insured!
But hey everyone will get what he deserves.