2FA - Email address problems

Well, you could try the account recovery form:

https://account.live.com/acsr

I thought you needed the email address but it says "email, phone or Skype" so it may be possible, though not if you have 2FA enabled.

Can you please send a screenshot of the issue that you're experiencing so we can check and validate what is causing the issue? Please hide any personal information such as your email address on the screenshot for your security and privacy.

If there is a 2FA you need to sign in to the email or phone number that you used in setting up 2FA, if this is an app, you need to sign in from there. You should see it when you're on the process of signing in to your Activision account.

you should always update account phone numbers as soon as you know they are to be changed, also setup alternative recovery email addresses and make a note of the account recovery code. support are not able to assist due to 2fa as they cannot access that.

Hi there,

Each Xbox Live Account will need it's own unique Email address.

When setting up a Family you are basically grouping different Xbox Live Accounts into a small group. For example when adding child accounts too, both parents can see and maintaing the child accounts. For some additional information this link may help: https://support.xbox.com/en-US/browse/xbox-one/security

If you have any questions just let us know

Try deleting the account, instructions
here and then downloading the account again with your current info.