Warhammer 40,000 : Eternal Crusade appeared in my inventory?

I have the same problem, what is that?

I just noticed game is f2p? I won this game at SG, how is it f2p? :)

Nothing for me.

From the certain someone here : http://steamcommunity.com/app/375230/discussions/0/133262487496558500/

If you were a paying customer before the launch of the progression restricted free version, this is our thank you to you:

-20,000 RTC ($20) that you get once when you log in after Content Update 1.3
-A Steam giftable Squadron Edition with 25,000 RTC ($20) as soon as it’s possible with Steam
The Venerable Weapon set is no longer available, unique to you
-4 x 4000 Faction RTC when you log in, as free launch weekend exposed some glass roofs
-The Imperium Edition changed to a DLC so you can buy it once despite owning the game, giving 50% off 4 DLCs and 25K RTC ($100 at $50)

As an early access user, you get:
DLC Warhammer 40,000: Eternal Crusade - Legacy
DLC Warhammer 40,000: Eternal Crusade - Weapons and Armours Pack (Pre-order venerable weapons and founder copper weapons)