
Thank you for posting your question in the Microsoft Q&A forum.
Regarding your issue, I understand how frustrating it is to deal with a subscription and a credit card tied to an account you can't access. While I can't directly help with account recovery or management, I can guide you to the right place.
If you are the only global admin and can't access Microsoft 365 admin center I suggest contacting Microsoft Support for help Customer service phone numbers - Microsoft Support
Please remember to provide them with your account details and explain the situation. Be ready to provide:
- The company name used during subscription
- Billing/invoice email address (even if it’s a personal Microsoft account or your invoice number)
- Payment method details (last 4 digits of the card, billing address)
- Any subscription ID or invoice numbers from billing email
To make the process smoother, here’s an example of how to respond when speaking to the automated system (IVR):
IVR: What kind of problem are you concerned about?
You: Authenticator.
IVR: What kind of product do you use?
You: Office 365 for business.
IVR: education or company account?
You: For companies
IVR: Are you an administrator?
You: Yes.
IVR: Do you have the other administrator in your organization?
You: No.
IVR: Do you need a... Service request?
You: Yes These prompts help direct your call to the right support team more quickly, especially when dealing with account lockouts and authentication issues.
If you still cannot reach to agent, there is still a workaround, you might consider registering for a new tenant by signing up for a trial subscription via this link Compare All Microsoft 365 Plans | Microsoft. This would allow you to create a new tenant following the provided prompts.
Once set up, you can access the admin console of the new tenant by logging into admin center and follow the steps in this article Get support - Microsoft 365 admin and submit a support ticket requesting to speak with the Data Protection team on behalf of your previous tenant.
Please remember to cancel the trial subscription once your issue is resolved to avoid any unintended charges.
As forum moderators, we don’t have access to the detailed system needed to troubleshoot this effectively due to privacy and security constraints. To quickly resolve this and regain access, the most effective step is to contact Microsoft Support Team directly. Only they have the ability to help with your Authenticator issue.
If you have any other questions or need further assistance, feel free to ask.
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