Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi, Helane Cristina Araujo
I have understood that you are experiencing issues with the Authenticator app,I wish I could handle your problem, however, the issues seems to require more specialized support, I suggest you try to seek help at Microsoft Learn, where there are more experts in related fields who can provide you with better solutions.
you can click on "Ask a question", there are experts who can provide more professional solutions in that place.
Here is a link to the forum where you can raise specific scenarios and share your idea to help solve the problem.
Microsoft Authenticator - Microsoft Q&A
Sincerely hope that your question will be dealt with appropriately after contact the correct department. Thank you for your understanding!
Feel free to post back if you need further assistance.
Thank you for your understanding and patience and I look forward to hearing from you.
Allen L- MSFT | Microsoft Community Support Specialist