You can update your Gamertag with the steps available here: https://support.xbox.com/id-ID/account-management/change-xbox-live-gamertag … ^RS
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
You can update your Gamertag with the steps available here: https://support.xbox.com/id-ID/account-management/change-xbox-live-gamertag … ^RS