How does extending a subscription work? I got Popular Science for free about 8 months ago, then a few weeks ago, I found another free subscription & signed up for it, too. Am I more likely to get double issues or will they figure out to extend my subscription? I'm pretty sure the two services I found offering the subscription were not the same.
Ultimately I have the same question whenever I find a discounted Playstation the Official Magazine because Amazon no longer sells that subscription, so I'll need to find a new way to extend it (preferably on the cheap).