Using classic Outlook for Windows in business environments
Hello , FionaWilson3
Welcome to Microsoft Community and appreciate your time taken for sharing detailed information. I understand that you can't access the verification code sent from Outlook. I know this is frustrating since you’ve been trying for 5 hours. I will provide you with some possible solutions on this issue, and you can try to follow them.
If you haven't tried this way, you can sign in to get a security code through your phone. You can use any phone number to request the security code. The phone does not need to be a smartphone, or connected to the internet, it just needs to be able to receive text messages. For more information, please visit: Account has been locked (microsoft.com)
Attention: account issues involve personal privacy, and you may eventually need to visit Microsoft site to submit questions by yourself to get your issue resolved.
Alternatively, if you want to contact Microsoft Customer Service the solve this problem, please read this first:
Contacting support for a Microsoft Account
In addition, I strongly recommend that you update your account information in time in the future. If any associated phone number or email address has been deprecated, please update the associated information in your account in time.
Feel free to post back if you have any additional questions.
Best Regard,
Yuhao Li| Microsoft Community Support Specialist