Microsoft keeps billing my for my old account help

In the top right corner of my Xbox it shows an old email I don't want on there and yes I changed the billing and Microsoft email but I can seem to get rid of that old one appearing but when I sign in to my Microsoft account it's still the old email so that
might be the problem anyone know how to change the sign in email for Microsoft accounts?

It keeps sending me to the same exact email. (my old email)

On microsoft account live.login.

Which gamertag is linked to your Microsoft account? The new one or the old one? My guess would be that your old account is still linked to your Microsoft account and you are trying to use the new gamertag but the old one is interfering. Check this link out
on transferring gamertags
support.xbox.com/.../switch-gamertag-to-different-microsoft-account. If that isn't the issue come back and let us know if we can help further troubleshooting the issue.

If you remember your gamer-tag you will be fine. Contact Xbox Support @ 800-469-9269 & explain that you know your gamer-tag however you cannot remember your email for your gamer-tag account and you would like help recovering it. You will be prompted with
verification questions to ensure you are not trying to recover someone else s account & if all checks out, you should be downloading & playing on your profile in no time.

You would have to contact support. As long as you can answer their questions to verify you are the owner of the account, they can give you the email.
support.xbox.com/contact-us