MFA sign in Problem

Question

We are writing to request your urgent assistance regarding the Multi-Factor Authentication (MFA) issue affecting our Microsoft 365 administrator account. Previously, we contacted Microsoft Support and were provided with Report Number: 260717004001032. Although we appreciate the support provided, the issue remains unresolved. We understand that one of the available recovery methods is to sign in using a hardware token. Unfortunately, our organization does not have any registered or available hardware tokens. Therefore, we are unable to complete the authentication process and regain access to our Microsoft 365 administrator account. As a result, we are currently unable to manage our Microsoft 365 environment, including user accounts, security settings, and administrative functions. We kindly request your assistance in providing an alternative recovery solution, such as: 1. Resetting or removing the existing Multi-Factor Authentication (MFA) registration. 2. Enabling an alternative secure verification method. 3. Advising us on the appropriate recovery procedure that does not require a hardware token. We are ready to provide any information or documentation required to verify our identity and ownership of the account. If Microsoft Support needs to contact us for verification or further assistance, our team will be available on Tuesday, 18th August 2026 10:00 am (Singapore Standard Time – SGT, UTC+8). Kindly let us know in advance if another time is preferred. We sincerely appreciate your prompt attention to this matter, as the issue is preventing us from administering our Microsoft 365 services. Thank you for your assistance, and we look forward to your response.

Answer 1

Hey there, Rumaizah Pathi

As you are the only administrator, that has lost access to your admin account for the tenant, please can you contact Microsoft business support for your region using the phone numbers listed here: https://support.microsoft.com/en-us/support/#tabpanel_1_work-account

Singapore is listed as a toll free number.

When you do call support, you will be greeted by an automated machine that will ask you why you are calling and to explain your problem. This is so it can route you through to the right team for support. When speaking, please speak clearly and say "Locked out of only admin account on tenant"

This should allow the bot to direct you to Microsoft support. The support agent will need you to provide information on your tenant, so they can pass this information onto Microsoft's data protection team for them to review. They will be able to verify this information and reset security information so you can gain access onto your account again.

Hope this information helps,
Nathan