Got in contact with the hustleman and got the coupons. Now bear with me and let me show you how gamestop done got hipped to the game:
They were having a buy 2 get 1 free used sale. I picked up Battlefront2, COD WWII, and South Park. Also got like $40 on trade credit...so in essence I'm winning with respect to the coupon and in store credit.
SP was the cheapest and became the free game. Guy scans the coupons but they "automatically" rolled to the most expensive game. This made COD like $4 now making IT the free game.
The way they explained it was the system uses the coupons first then the in-store promo. And bc you can't apply the coupons manually (or they say) this situation is unavoidable.
Ended up putting Battlefront 2 back. Been playing both COD and SP since yesterday.