Sophos Antivirus 9 for Linux

Hi

I am trying to get the download file sav-linux-free-9.tgz

I cant download the free antivirus until I complete the license details- what are these please? These are free and have not been provided to me and yet it says:

NOTE: Your product license credentials were provided in the Product License Schedule sent to you when you purchased your Sophos solution(s). These credentials are not your Sophos ID and password.

Product License Username
Product License Password