student license serial number registration refused

Hello,

I could install SolidWorks and got a student serial number 9020 from Solidworks Community Access. I also have a MySolidWorks account.

In order to switch MySolidWorks account from 'guest' to 'student', I need to register the serial number I used to install  into mysolidworks. However, the serial number is refused by MySolidWorks mentioning that it is invalid. Is there anything else I need to do to register as student?

Thank you by advance, best regards,

Cedric

SolidworksMysolidworks