>>3225719If I understood you right, so long as you yourself or another party put the $500 balance on it, I can't imagine they'd care. I'm sure they've got fees involved where they come out ahead and you don't, in any event. You're probably not going to break even, you'll be a little behind, and the credit card company's fees will make it worth their while for any transactions or juggling that you do, ultimately.
If I were you, though, I'd probably wait for a Canadian response or second opinion, in case I'm missing something.