cold war asking to re purchase

That's strange.
This can be a bit odd, but please try this:

go to Settings > Network > Advanced Settings

Once you’re inside the Advanced Settings menu, go to DNS settings and select Manual from the list of available options.
When you get to the next screen, enter 8.8.8.8 in the box associated with the Primary DNS and 8.8.4.4 in the Secondary DNS box.

Once the default DNS addresses have been changed, restart your console > re-add your account and see if the issue has been resolved at the next console startup.

(If that doesn't work use 1.1.1.1 as primary and 1.0.0.1 as secondary)

If the issue persists and in order to isolate the issue a bit more. Can you try downloading the game on a different console?

Thanks, that's odd.
Just to confirm, are you trying to install the game via Microsoft store or do you go to your owned games and apps and you installed the game from there?

Or... Is this happening no matter how you try to install the game?

happening no matter how i install the game and no matter what i try on cold war it just won’t work

i have checked and it says i bought it on november 20th 2020

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this MALACHEYE

Let's double check something first, if you go to your Microsoft account order history here
https://account.microsoft.com/billing/orders

Are you able to see the game with order status completed?
In case you have more than one email address please check on each one

PS: Please don't share any personal information like emails or full order number, here in the forums no one can access / modify / view account details due to privacy and reasons