Key not recognised by GFWL!

[Von Adder]

So what gives? After what feels like signing my life away in blood just to get to the start screen, i'm then told to add a key for GFWL!

This i do but i'm told the key is not recognised? This hasn't stopped me playing the game though, as soon as i quit the GFWL sign in screen i was taking to the save screen and from there into the game!

My question is, wtf do i do if i want to sign into GFWL?