When you contact support, it is recommended to include the following information: If you've tried the troubleshooting steps below and are still running into problems, you can post a question on the Azure AD Forums, Search the Microsoft Knowledge Base (KB) or contact support and we'll take a look at your problem as soon as we can. How do I clean up Azure Authenticator from my old device and move to a new one?.I have a new phone and need to change my phone number.The following information is provided to help you with some of the common issues that you may experience.
If you do not find an answer to your issue on this page, please provide detailed feedback so that we can get this added. Having trouble with Azure Multi-Factor Authentication