Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Log into your Microsoft account on this link, do you find the Microsoft 365 subscription listed there, and if so, is the expiry date listed correctly for your payment?
https://account.microsoft.com/services/
If the subscription is not listed, go to the Payment and Billing section, do you see your payment listed there, and if so is the payment indicated as processed correctly.