Provider did not accept user authorization. Try logging out from your provider account and...

If you have no issues signing into your account via Microsoft account | Home, it means that you will need to get in touch with the developer of the game for further support because we don't have any kind of control over the in-game account.

You should use a different payment method, this happens when it's not possible to get authorization from your payment provider, you could try also adding Microsoft balance to the account

i say provide the email associated with your xbox profile and see if they will accept it

ps: did your account just turned 18?

You are responsible for your account at all times. You agreed to this when you accepted the terms of service and code of conduct.



4. Your Service Account, Associated Accounts and Accounts from Third Parties.

Except as provided in this Section, only you may use your Service account. You must keep your accounts and passwords confidential and not authorize any third party to access or use the Service on your behalf unless we provide an approved mechanism for that.



Not reading the terms doesn't make you exempt from the punishment. The account was modified and the enforcement team has taken the appropriate action. There is no way to get your account back.

[quote user="JAMEZAY"]

I fully understand the xbox live terms and conditions

[/quote]
I don't believe you do. If you did then you would not have posted here. You would have understood that it happened as a direct result of your negligence. Here is a little snippet from the XBL Terms of Service that applies to
your situation:
*

4. Your Service Account, Associated Accounts and Accounts from Third Parties.

Except as provided in this Section, only you may use your Service account. You must keep your accounts and passwords confidential and not authorize any third party to access or use the Service on your behalf
unless we provide an approved mechanism for that...