I was sold this copy of Microsoft Office 2024 Professional Plus (as a lifetime copy), and installed without issue shortly after receiving it. However, now I am being notified by Microsoft that it is not a registered copy, and the seller did not provide me with a key in order to make it continue to function (I am being given four days from 9/20/2025 to provide a valid key. I have notified the seller that they did not disclose it was an LTSC copy and that I am unable to activate it (no key).