Trial Version - https://symantec-corporation.com/servlet/formlink/f?kPugHuQWRSY&ACTIVITYCODE=137010&inid=GL_TW_Type2_desktop-laptop-option_daiNA_cta58671_aid137010
Fileconnect portal - https://symantec.flexnetoperations.com/control/symc/registeranonymouslicensetoken
The second link requires a serial number. If you don't have one, you would need to contact customer care at https://support.symantec.com/en_US/contact-us.html
After entering the details, you will receive an email which contains the download link. Perhaps check your Spam folder if the email inadvertently is in that folder or not.