Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
If your subscription was due to expire on 14.04.2026, it is very strange if your subscription will only be extended to 13.02.2027 after extending your subscription by one year, this forum is just a user to user forum, no-one here has any account access, the best option may be to contact Microsoft Support directly to ask them why you only received 10 months for your yearly payment, 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