Dear SERVICE ONE2ONE IT
Thank you for the reply,
For some countries, it will be an automated conversation like: First, when you call the hotline, and it will ask what kind of problem you are concerned about.
Answered: authenticator.
A: What kind of product are you using?
B: Office 365 for business.
A confirmation: education or company account?
B: For companies
A: Are you an administrator?
B: Yes.
A: Do you have the other administrator in your organization?
B: No.
A: Do you need a.... Service request?
B: Yes
->You can also refer to phone numbers in Global Customer Service phone numbers - Microsoft Support
If still does not work for you, I suggest raising your issue with our dedicated Microsoft Authenticator team via this: Microsoft Authenticator - Microsoft Q&A. They have extensive experience and vast knowledge in handling such matters and will be able to provide you with the most effective guideline.
Thank you for your kind understanding!