Solved
An EA Account can only be linked to one Steam account in its lifetime.
I purchased "It takes two" yesterday on my personal steam account and downloaded the main game. I downloaded the friend's pass on my son's steam account. Today I attempted to play the game for the fi...
Understandable that this is frustrating.
Even when you linked it to your son's account both accounts need to have a unique account linked to their EA account to play the game.
Meaning you will need to create another ea account even if this was not the case.
