When I talked to Walmart customer service about my preorder, he said it would arrive on the 25th so I they are just going to ship it once the game releases.
I tried that method, but when I opened the app, it wouldn't let me past a screen that told me to update. I've heard some people got past it, but I never could.
I just called in to the Walmart customer service on my first try and got one ordered with a confirmation email! Thanks to everyone providing information!