Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi assiBE
I am Dave, an Independent Advisor, I will help you with this . . .
Are you sure you do not also have another version of Office installed on your PC, open the Settings App, go to Apps, then scroll down to find Microsoft Office, is there also a version of Microsoft 365 installed on your pC?
Log into this page: https://account.microsoft.com/services/
Do you see your Microsoft Office 2016 licence listed on that page?