Desktop Pro Licence no longer listed in my account

I have a valid Parallels Desktop Pro licence for Mac but since today it's no longer listed in my account.
I am in the process of migrating my Mac laptop to a new Mac mini (both Intel) and after starting parallels on my new machine, the product is no longer registered, neither on the old Mac nor the new Mac.
Since the product is no longer registered, I can't raise any support tickets...