I’ve looked into it a bit more and looks like they’re US only – might have something to do with the fact that US tickets are mostly refundable by law. So yeah,

I’ve looked into it a bit more and looks like they’re US only – might have something to do with the fact that US tickets are mostly refundable by law. So yeah, it could work in this particular case, but still not sure it’s a good deal. They say they’re getting you some “credits”, while you could just rebook for the new price and refund the old one and get the difference in cash instead.