Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
I understand how frustrating this situation can be, especially when there is currently no Global Administrator account available to manage the tenant.
Please note that this is a user-to-user forum, and I do not have access to Microsoft’s internal systems or the ability to make changes to your tenant. I can only provide information and troubleshooting guidance based on publicly available resources.
In this situation, you will need to contact Microsoft Support for further assistance, as they can review your situation and advise on the available options.
If you are unable to reach the appropriate support team by phone, you can consider directly submitting a support request as a helpful workaround:
-Create a temporary Microsoft 365 tenant using a trial license: Go to Microsoft 365 Business Plans and Pricing and click Try for free to set up a temporary Microsoft 365 tenant with a trial license.
-Use this new account to sign in to the Microsoft 365 Admin Center and submit a support request on behalf of the affected tenant.
-Select the Help & support (headset) icon >If Support Assistant is enabled, turn it off >Type contact support in the search box >Select Contact support, then choose Phone or Email to submit your request.
Note: This method doesn't require you to use your new account for your business. Instead, it allows you to create a temporary Global Administrator account in a separate Microsoft 365 tenant so you can submit a support request regarding your original tenant, where no Global Administrator account is currently available. The trial account is free for one month. Be sure to delete it after submitting your support request to avoid any automatic renewals or charges from Microsoft.
For further instructions, you can refer to the following Microsoft guides:
Get support - Microsoft 365 admin | Microsoft Learn.
Cancel your Microsoft business subscription in the Microsoft 365 admin center | Microsoft Learn
I hope this gives you another way to reach the appropriate support team.