Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello
Did you cancel it this way?
Please go to https://account.live.com
Sign into your Microsoft account. Then go to Services. Click on Manage for the subscription plan you want to cancel.
If you did, the subscription is still good until it expires.
Since it just happened yesterday, chat with support and typically you can ask for a refund.
To get help, open the "Get Help" app on your computer (just search for it in the Start menu). or go to https://support.microsoft.com/contactus, Type "Billing" and press Enter. On the next screen, click "Contact support" at the bottom of the page, then choose "Microsoft 365" > "Manage my subscription". You’ll then see the option to chat with a Microsoft support agent who has access to your account to help review the issue.