Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Your Microsoft account should show you any active subscriptions. If this is a business subscription, go to https://admin.microsoft.com . (For a personal subscription, go to https://account.microsoft.com/services .)
Note that if you didn't at some point submit your credit card info to Microsoft, your credit card may be compromised, and in that case, you should contact your bank as well.