Hi Braun Matthew,
Good day.
I hope you're doing well. Thank you for posting to the Microsoft Community.
According to your description, if you are only the Office 365 global administrator in your Office 365 Business Standard / Enterprise / Education tenant organisation, this specific situation will be handled by Microsoft's higher-level support team, they will do standard and confidential process for the global administrator account from their side, this team may take a few days to do the standard verification process, because this whole scenario is relevant with the data security of your Business or Enterprise tenant. Because since we, the forum moderators, have limited access permission and resources, we cannot take any action in this public forum for admin account or end user account related situation. Because, certain standard process is required.
For this process, as Microsoft 365 global administrator may need to contact our support team or Microsoft Business technical support team by phone support: (select your country's region code): Find Microsoft 365 for business support phone numbers by country or region - Microsoft 365 admin | Microsoft Learn
Note: Microsoft 365 Business or Technical Support Engineer may collect alternate e-mail address information to assist in the verification process.
When you call hotline as phone support, please request them to escalate your case to proper support team. While phone call, press "1" as business email user and press "1" again as technical support. Our Business support team may ask you some information such as subscription, billing , email address or phone number, domain etc.
I would really appreciate your precious time. Thank you again for your kind cooperation.
Stay safe and healthy.
Sincerely,
Darpan