They put these kinds of promo's out to get you to update payment info and allow them to auto renew. They get what they want you get what you want, im sure the only way you would get banned is by going out of your way to abuse the system.
I have an upgrade code to bring Civilization V to the deluxe edition, got it with my nvidia card purchase but I'll never buy civ V so I figured someone could use it. Looking to get a month of xbox live gold in trade, let me know if you could use Civ V deluxe edition.
First one was pretty good and I was mildly looking forward to this one. But my hell after seeing the gameplay I actually might have to bump Allan Wake back another month (as if I'm not used to that) and pick this up. The miltiplayer looks really fun and my wife might get off on how realistic...