Removing old backups from Cloud Storage

All, I posted this yesterday as a comment about purging files but am starting a new thread because I do want a solution.

I had to uninstall and reinstall Norton Security with Backup due to other problems.  I did not try to save my settings during the process.  Afterwards any backup sets did not appear on my Norton installation BUT they are there on the Norton back up servers awaiting download to another computer if I log directly into the Norton Backup area rather than through my local Norton Security installation.  There is no Purge option in the cloud files when I access my backed up data so I cannot get rid of them.

Does anyone know how to get rid of what are now 'orphan' backup files sitting on Norton's cloud server?  I can download the content on to another machine (including the machine on which I originally created them) but I can't find a way to remove them from the cloud.

Thanks, Frank