Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
If you upgraded your subscription, for example from Microsoft 365 Family to Microsoft 365 Premium, using one and the same account, the end date has been adjusted, effectively adding the two subscription products together. You can't cancel without canceling the entire subscription. Maybe that is what you want. Turn off recurring billing and cancel from your account. See https://support.microsoft.com/en-us/accounts-billing/subscriptions/cancel-a-microsoft-365-subscription .