I bought the vault edition of modern warfare 2 the store is giving me the option to buy it...

I understand what you are saying, however there are 2 different lots on the xbox store. Vault Edition (which is the base game plus vault edition pack) and a separate Vault Edition Pack.

The thing on sale was the Modern Warfare 2 Vault Edition, not the Vault Edition Pack.

If they were selling the upgrade, that would be the "pack" one. Modern Warfare 2 Vault Edition was on sale.

By the way, the "just for you" offer lasted for 2 days after I refunded the Standard Edition. It is on the 3rd day when I wanted to buy the Vault Edition, the offer disappeared.

Weird staff.

I have absolutely the same issue. Bought standard edition, the store offered me the Vault Edition (discount for 22 days and wrote "just for you"). I refunded the standard edition. Just for you offer lasted for 2 days after that and then disappeared, the moment I wanted to buy it.

Now, the New Year discounts are off and I have to buy the game for the full price.

Note: nother it was stated that it was an upgrade! They offered the full Vault Edition with the 72% discount!

Not sure what the issue is? You had the Standard edition, were offered an upgrade of the standard edition to the vault edition...when you refunded the standard edition, you were no longer eligible for the offer as you no longer had the game to upgrade from.

I didn't see the upgrade offer personally so can't say for sure if it said upgrade somewhere in it. To be honest, there was no way they were going to offer the vault edition for 72% off less than 2 months post release given the number of people still buying it.

I've just looked on the MWII page and it says:

"Existing Modern Warfare® II Digital Cross-Gen Bundle owners can upgrade to the Vault Edition as part of a limited time offer."

That would be the upgrade offer

https://www.xbox.com/en-US/games/store/call-of-duty-modern-warfare-ii-vault-edition/

I bought the disc of modern warfare 2 and I wanted to upgrade to vault edition and I see the option to upgrade but ITS 100 DOLLARS STILL!!!! why wouldn’t I have a discount if I already purchased the game?

There is a message on the store in the Vault Edition that says: "Existing Modern Warfare 2 digital Cross Gen Bundle can upgrade to the Vault Edition as a part of a limited time offer"

But I don't see anywhere in the store the update or any instructions regarding how that works.

Hi, I found that strange… what edition was the one that you purchased?
Vault or Cross-gen?

In the meantime tell me, if you go here and sign in with the account that owns the game. Are you able to see an “install” button? Or just “buy”?

Vault:
https://www.xbox.com/games/store/call-of-duty-m...

Cross-gen
https://www.xbox.com/games/store/call-of-duty-m...