Phone number is already associated with an existing Microsoft 365 developer account | Code: 40901

Question

Hello together,

When I try to set up an instant sandbox for Microsoft 365 as part of Microsoft 365 Dev Program (https://developer.microsoft.com/en-us/microsoft-365/profile), I am getting the following error:

We can't continue with the signup process for the following reason:

Your phone number is already associated with an existing developer account.

For help with your Microsoft account, go to Microsoft account and verify your information.

MS-CorrelationId: xxxxxxxxxxxxx

Code: 40901

I think, I have created a profile with this phone number in the past, but I can't remember.

Is there a way about how to retrieve the existing profile and link it with my profile, or remove the profile so I can create a new instant sandbox?

Thank you in advance for your support.

Best regards,

Knut

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