Locked out of my account

Hi,

I enter email & password....

> Approve sign in request

I click - > I can't use my Microsoft Authenticator app right now

Options....

- Approve a request on my Microsoft Authenticator app

>Enter authenticator code

or

>If you contact your administrator, send this info to them.

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Error Code: 500121

Request Id: b4e1c0be-58bb-4b76-a55c-770e82eb2800

Correlation Id: c36c16eb-9079-4f9a-b545-c8d41bfd818f

Timestamp: 2026-05-06T18:35:50Z

Flag sign-in errors for review: Enable flagging

If you plan on getting help for this problem, enable flagging and try to reproduce the error within 20 minutes. Flagged events make diagnostics available and are raised to admin attention.

- Use a verification code

> Enter the code displayed in the Microsoft Authenticator app on your mobile device​

I'm the only person using this account, the admin is myself not a separate account.

I can't use the authenticator app as i don't have my old phone.

There are no other options, not