Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
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Did you try sign in with onmicrosoft.com domain email address account?
If issue still persists, contact phone support team You need to contact phone support. You can use global phone numbers: https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2