It’s possible that your Premium account is linked to a different email address. Check out our guide to finding any other accounts.
If you are certain that you are logged in with the email address associated with your Grammarly Premium account, but the Microsoft Office add-in prompts you to upgrade to the Premium version, it is important that you log out and log in again with your Premium account in Word:
- Click the "Grammarly" tab in Word and press "Log out".
- Then, click "Log in".
- Sign in by submitting your Premium account email address and password.