I finally managed to get the software installed on a new computer after my old one died (Vegas Movie Studio 16 Suite) but when I try to register with the  serial number I provided, I get  an error telling me that this serial number is already registered to another email address. The email I am using is the same as my purchase address (jimmy@jimmycrabb.com) and is also the email I use to login to the service center where I retrieved the serial number in the first place.

Registration date is listed as 03/07/2020