Jay gave me a new license key after getting a product activation notice from Microsoft Office after 30 days.

I think I might have installed the instance incorrectly the first time since there's a current Microsoft Store install for Excel, Word, etc, and prompted the activation notice.

Not gonna lie - I got nervous initially because it was so inexpensive and it could very well be a scam trial license for 30 days, so I contacted Nerdused support, and it was solved in a jiffy. Jay gave me the new product activation key and the exact steps to follow.