Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Log into any Microsoft account you may have on this link, do you find two separate subscriptions, or just one?
https://account.microsoft.com/services/
If there is only one subscription, check the expiry date on the subscription, is it indicated that expires in 2027 or 2028?
If you only find one subscription with two years remining on the subscription, then do not cancel the subscription, you may loose both subscriptions and may only be refunded for one year.
This forum is just a user to user forum, no-one here has any account access, you will need to contact Microsoft Support directly, try using this method to contact their support.
Go to this link: https://support.microsoft.com/contactus
Select Microsoft 365
Click 'Get Home Support'.
In the box provided, type billing.
Press Enter, then on the next page, scroll down and click 'Sign in to Contact Support'.
Navigate to Microsoft 365 and Office - Manage my Subscription.
Select the 'Chat with support agent in web browser' option