Originally Posted by Miltiades
There has been some confusion about this. You may not like this, but it's how it is:
Whether you were part of early access or just bought the game at launch, registering the product key is not enough. To get your 30 days of free game time, you will need to register your subscription plan (registering via credit card or Visa) or input a prepaid game code to activate your account.
sorry I didn't reply earlier, but yea, I figured that out eventually lol. Doh!