So i went on the dashboard of my profile then to the activate key page, i insert the game key provided by steam and i was redirected to the Add Subscription page, i selected the "Game Card" button and re-enterd the steam key...but is says that it is an invalid cd key!
What have i mistaken?IS this a problem and if it how can i resolve it?
the steam key is for registering the game. you still need to activate a subscription. this requires you to enter a credit card or if you use game card you need to buy a gametime card and enter the code from that card. (not the registeration key } the registeration key (cd key) will give you the 30 day game time after you activated a subscription. you will not be charged for a subscription (if using a credit card) until the 30 day bonus is used.
if you use a game time card the 30 days will be added to the time of the gametime card.