Hello,
Thank you for posting in Q&A forum.
Can you describe the problem you encountered in more detail? If you need more details for me to follow up on, please let me know and I will try to help resolve the issue. Thanks for your patience.
If you are referring to a problem with the Microsoft 365 administrator phone number, please refer to the following link for updates:
Update your admin phone number and email address - Microsoft 365 admin | Microsoft Learn
I hope the information above is helpful.
Best Regards,
Yanhong Liu
============================================
If the Answer is helpful, please click "Accept Answer" and upvote it.