Managing personal Outlook.com account settings, security, and privacy
Hi Eric,
Thanks for posting your query on Microsoft Community.
We understand the inconvenience caused and we will try our best to resolve the issue.
This issue might occur if the verification code, which you are trying to enter is wrong.
As per your query, I like to inform you that; if you can’t get a security code by text message or code is not correct, you can still use your phone number. When you add the number, choose the option to get an automated phone call instead.
For more information, refer to the below link:
http://windows.microsoft.com/en-in/windows/account-security-password-information
Hope it helps, reply to us with the status of your issue. We will be happy to assist you.