I managed to get one from their Facebook page (they posted a few in the comments section) and just noticed that it somehow activated a $17.99 3-month subscription for me. I must have somehow overlooked what the screen was saying when I redeemed the free 1 month trial, and now I'm a little angry at how underhanded it is to put something like that in there. I only had the option to "continue" or "cancel", and evidently "continue" means "I'd like to overpay for 3 months instead of using the code I just entered, thanks!"
Joke's on them, though - I had old credit card info stored (I had to get a new one after my credit card company detected fraudulent charges). Wonder how that'll work out.
EDIT: Now it's saying the 3 months are free. Make up your mind, transaction history.