How do I redeem the preorder Monster Expansion Pack on Xbox One?


Ok, maybe i’m just blind, but i preordered from Walmart and i can find anywhere to redeem the Monster Expansion Pack preorder bonus to get the skin. I know Behemoth is not available at the moment, but i just want to make sure everything is tied to my account.


and to make things worse. All i have is the receipt that cashier said they had to keep the preorder card…