Let me re-attempt to explain to you what the problem is:
- I've logged into Office 365, which takes me to office.microsoft.com. My account is for the Home/Student version of Office.
- There is no option in the top-right of this page for Settings>Office 365 settings.
- I instead go to 'My Account'.
- I am sent directly to a page that reads:
Office isn’t associated with this account.
- If you’ve already activated Office, sign out and then sign in with the Microsoft account you used to activate Office.
- If you have Office but haven’t activated it, you can use your product key to activate.*Activate Office now*
- If you don’t have Office, you can buy it in the Office store.
I tried signing out and in again: no changes.
I have activated Office already.
Oh look, I can buy Office again. I don't think so. My key should already be associated with my account.