Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi, Tom Pickard
The masked ID is only a hint. There isn’t a button on the purchase page that reveals the full email address. The recovery form is also hard to use until you know which account you’re trying to recover.
If Office is still installed on a computer where you used the subscription, open Word or Excel and check File > Account > Belongs to. That may show the full account address. Also search your email accounts for the Microsoft 365 purchase receipt, and check Settings > Accounts > Email & app accounts on a Windows PC you used with Office.
If those don’t turn it up, use the forgotten-username lookup with any phone number or backup email you may have added to the old account. It may still show only a masked hint, but that can help you match it to an address you recognize. Once you identify the full address, try Forgot password for that account.
If you still can’t identify it, contact Microsoft Support about the charge. Have the date, amount, and card’s last four digits ready, but don’t post them here. Support can help investigate billing, though they can’t disclose account details or reset the password for you.
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