Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
If the Microsoft 365 Personal subscription was purchased directly from Microsoft, cancellation requires signing in with the same Microsoft account that bought it. Go to https://account.microsoft.com/services/microsoft365 and look for Cancel subscription or Manage. If Turn on recurring billing appears instead, the subscription is already set to expire and no further cancellation is needed.
Since the account, email, or phone number is no longer known, the practical next steps are:
- Check old inboxes for Microsoft billing or receipt messages to identify the Microsoft account used for the subscription.
- Review the charge details and investigate the billing charge to determine which account may be tied to it.
- If the account cannot be recovered, contact the card issuer or bank and ask them to block or stop the recurring charge.
- If the subscription was bought through Apple App Store, Google Play, or a third-party retailer, cancellation must be handled with that seller instead of Microsoft.
- For direct Microsoft help with account sign-in or billing support, use the Microsoft account help and support contact options.
If the subscription is tied to a work or school account, cancellation must be handled through the organization’s IT admin.
- Cancel a Microsoft 365 subscription | Microsoft Support
- Unable to cancel your Microsoft subscription | Microsoft Support
- Get help with your Microsoft account
- Cancel Old Microsoft Office Subscription - Microsoft Q&A
- I have a recurring charge on your credit card but don't know which Microsoft account it belongs to. - Microsoft Q&A
- Microsoft 365 Cancellattion - Microsoft Q&A