I want to purchase a used unlocked iphone 4s from ebay, then use it for 2 weeks with Koodo until I leave Canada for ever. I'd like to know if there's an option or plan to use the iphone with Koodo without them locking my iphone. I don't want to have to pay another unlocking fee when I get to Peru. I will use a local new carrier when I get there. In other words, I don't want Koodo to force me to lock my phone with them. Is the Koodo "SIM only promo plan" good for what I want? I don't really get what it means or its purpose or the advantage of that plan. link: https://shop.koodomobile.com/plans/cheap-cell-phone-plans-in-canada/sim-only-promo-plan/c99999906-c99999907-cPromoPlans-p0.html Also, if I buy a new Koodo SIM card, can I use that SIM card with another carrier abroad? But I mean use it with the new carrier from abroad, not with Koodo, I want to close my Koodo account the last day I'm in Canada and avoid paying a new SIM card when I get to Peru.