This isn't the seller's error. It's the global shipper's. When the global shipper receives packages from sellers, they repack them and create the international labels. You've received someone else's goods, and that someone else will have received yours.
How you deal with that I have no idea, as I avoid sellers who use the global shipping programme like the proverbial plague, but I suggest that your first port of call should be the international seller of the item you're actually expecting.
@agadora
