Unable to purge backups in online storage

Hello,

 

1. In process of uninstalling old norton 360 V3 from Vista o/s. Logged on to nobu.backup.com/session/new. Followed instructions to purge but NO PURGE BUTTON FOUND.  Also tried erasing Default Set from My Computer but deleting kept failing. So does anyone know how I can delete my on-line files before I create a new back-up when I install Version V Premier?

 

2. When I install the new Version 4 I have found that Total Backup Available is now 57GB made up of 2GB [old software] + 25GB [V3] + 25GB [V4]. Is this correct? So do I actually have a total of 57GB to use??

 

Many thanks

K :(:womansad: