Did you know that the 30 days free game time only applies once?
Once your account has had the free game time, your account isn't allowed it again.
Actually, not true. I have yet to add any subscription info to my account like a credit card for automated billing and I have free time up till Feb. 2012 just from adding boxed codes with 30 days free.
I drove around to all the stores in the area that had STO still on the shelves and bought up what I could for the exclusive bonuses. Picked up the regular retail version and collector's edition from Gamestop (paid a total of $23 for both) and after applying the serial, I was credited with free time till February.