Hey DanyCrost,
Welcome to PokerStrategy.com
Double Action freerolls work in two ways.
1) If you signup to PokerStars through PokerStrategy.com and deposit. As your account is not tracked to us, you won't be eligible.
2) You can refer your friends to us. They sign up to us by using your unique referrer link, create a PokerStars account through our links and then THEY can play. If they cash in any of the Double Action freerolls, you will receive an equivalent amount in your T-a-F account.
You can read about the Double Action freerolls
here.
And you can find information on our Tell-a-Friend program
here.
There are still goodies to be had though.

Make sure you check out our
free money offers. This will cost you nothing and will give you lifetime Bronze status.
Bronze will give you a tracked room to earn SPs, the ability to send friend requests and PMs through our
community tool as well as opening up more
strategy and
videos.
If you have any further questions, please don't hesitate to ask.
Have fun
Laz