Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
1
Open Word.
At the top right of Word, log out of Office.
Restart (not shut down) your PC, then log back into Office, is your subscription then recognized correctly.
2
If not, open Word, then go to File - Account.
On that window, click the 'Switch License' button, are you able to find your Microsoft 365 Premium subscription listed to select it.