I haven´t stumbled upon anything that has made me unable to play the game.
Free days should only apply when:
The service is down a large amount of time (maintenance not included).
The service haven´t been down at all except for maintenance afaik.
I paid 40 euro for the game. 30 days included in that price (14.99) and I got 7 days extra play time (3,49) in Early Access which equals to 18,48 euro worth of game time.
That means the game itself cost me 21,52 euro.
Man that´s alot of money...