You are probably right. Perhaps the OP can get some info from this thread.
SERIAL NUMBER ?
Cubase
The only number I can find that looks like it might be my cubase 5.1 serial number is like this XB7JH-JHJ7V-GRWWV-FK9JM-TFWT6 Does this look like the right format please? if it is should I enter it with the dashes or just as shown. It’s for a...
Also, there is a email address at the bottom of this link that the OP can try.
Steinberg USA support contact
If you are looking for support resources outside the USA, please click here. The Steinberg USA support team is committed to providing a comprehensive service experience. An important part of any su...
Regards.