The content does not work. What should I do?

This didn't work for me friend, thanks for trying to help.

Hi there PepePlayGame, my name is Gerardo, and I'm an Xbox player, just like you. I'll be happy to assist you with any questions or concerns you may have.

The Vault Edition Upgrade does not include the base game, so you will need to purchase the base game separately to enjoy the benefits of the Vault Edition Upgrade. Alternatively, if you prefer, you can request a refund.

To request a refund, please visit the following website:

https://support.xbox.com/help/subscriptions-billing/buy-games-apps/refund-orders

Please take in mind that sometimes it can take up to 24 hours for your purchase to appear in the refundable orders history. If you don't see it, you may need to wait that time and check again.

I hope this helps and if you have further questions please let me know.

Kind regards,
Gerardo.

Hi,jayce! I'm Luis, a fellow Xbox Gamer . Thanks for reaching us out here.

If you have already contact the retailer then you should contact Xbox support

https://support.xbox.com/en-us/contact-us

What should I do if it does not work?

The warranty on a second-hand Xbox console is void, and the purchaser assumes the risk for any previous modifications or unauthorized activity. Even if the console’s ownership has changed, the console may still be subject to a ban. If you purchase a console
that has been previously banned you will not be able to connect to Xbox Live, and the ban will not be lifted as a result of the change in ownership. We recommend customers who believe they have not committed actions on the service to warrant a ban to contact
previous owners or users of the console.

https://enforcement.xbox.com/home/howto#sub-topic0-3