Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I have waited in a long queue for Microsoft Technician's online help. He took control of my computer, and seemed to delete my login for the Office 365 account, so that Office no longer recognised the licence for Office. There must have been some kind of reset. He then signed me back into Office by using my MS registered email address and there it was fixed. Good work from the technician, and I kept my Privacy Settings as I wanted them! Good result. Shame that MS couldn't give better advice with their "help pages"! Hope this helps!