Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Sorry to hear you're having trouble.
However, as this is an open forum I'm afraid that no one here would be able to help as account access would be needed. My recommendation here would be to start an online chat via https://support.microsoft.com and click on Contact Us. Follow the instructions provided until you reach a person and explain the problem to them. They should be able to help from there.