2GIG SamKnows dropouts happening again

I upgraded 6 months ago from 1gig to 2gig connection with a Hub5x and placed a call a couple of months in due to my work vpn dropping out almost hourly at the sametime.  Looking at my Firewall logs I could see a small amount of packet loss at this time every hour at xx:44 minutes.

After making a complaint to Virgin due to notbeing able to log a ticket easily as kept going through their automated system, I eventually got an engineer visit raised.  When he turned up he said it might be the SamKnows teating they do and he'd raise this his end.

I think for while the testing was turned off or decreased for me, and everything seemed to improve, but it seems npow eveything has returned back to how it was.

As I am paying a premium price for this product i either wish to somehow get this reasolved, looking for advice on how to, or cancel my contract without being charged extra as technically the service isn't providing a reasonable service.

Can anyone throw any light on the subject, especially as outside Virgin this seems to be aknowlegded as a common issue.

thank you.