I have a Unity Pro license through work that allows 2 seats. Checking UnityID I see I have only activated it on my PC. I log into my unity account on my Mac and download Unity Hub. After installing I skip past the Generate personal license screen and go right into "Manage Licenses". I enter the Serial Number that I obtained from the UnityID site but it fails to recognize it saying for me to check if it is a valid number. I have checked multiple times. Oddly on the Unity ID site, I see my Mac is showing as registered for the other seat! I have restarted Unity and my Mac. I have completely reinstalled unity from scratch. I have tried using the Personal License option but that fails to generate a license as well. I have tried every option listed on the website. Tech support has been investigating it without success for a few days. I need Unity to work NOW.