UNITY just deactivated my pro version because it though that my time was american not australian. Then i wound forward the clock to combat this and it has deactivated it. AND i has 272 days left when i last checked HELP
If you’ve purchased a Unity Pro license then I’d suggest contacting Unity support. firstname.lastname@example.org
If you haven’t purchased a license, I’m not sure there is anything you can do to reverse that.