How do you change your phone number on xbox

I’ve paid for it on the 6 September2022

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 Liam

In order to do security changes (in this case, change the phone number associated with your Microsoft account) probably you need to verify your identity.

Sign with your account here:

https://account.microsoft.com/profile

Select "Edit account info" and remove and add the desired number.

Please also double check and delete the older number from here as well:

https://account.microsoft.com/security?lang=en-US > advance security options

I need to if The payment has gone through for the new call of duty modern warfare two

You should be able to change it at
http://account.live.com

I gave you the link. Just go to your info under your account and it gives you the options for changing information on your account.