Update: My dad just remembered that a dude handed him a $50 dollar Walmart card upon purchasing my 3DS XL, so I guess that's the promotion that replaced the game that should've come with it.
Also I just learned that you can use Walmart cards online.
My parents told me not to worry about money or the price of the games and I realized it will open a new variety of gifts to want for special occasions (birthday, Christmas, etc). So I now have $65 in Walmart cards and cannot seem to find Steam Wallet cards on the actual website. This is annoying.
But hey, at least I got money to use now.