Free Game Pass bundled with Xbox

Hello. I bought my Xbox One X two weeks ago. At the initial setup, I was offered 14 days of free Game Pass subscription. At the end of this free subscription I can't activate the code that came bundled with the console, because it is only for new customers.
What should I do with this code now?

:)

 

Halo 4 Map Pass Helmets and Emblem?

The War Games Map Pass will be available at Halo 4's launch and will come free with the Halo 4 Limited Edition, but cost $24.99 (2,000 Microsoft Points) to those with the standard edition. This prices the DLC at a 15% discount from standalone purchases of
each DLC. Two unique in-game helmets and an emblem are also bundled with the map pass.

 

Forza 5 is free this weekend only so get it if you don't already own it

Like title of the thread says its free. Go to "games" and you see the Forza 5 sweepstakes picture and click it and go. This weekend only. I already own it. Came bundled with my xbox1. But figure to pass it on.

 

From the sound of it, you have already had a 14 day trial of game pass, if so, once you have used one, you cannot use another one. Feel free to give the code to someone else if you want. Let someone else have the benefits of a free trial.