my cron job seems to have stopped running

[#1]

I have a backup script that is run by CRON.    For someone unknown reason it has stopped running.    The script itself is fine as I can run it manually no bother.
As all CRON entries are now under the control of PN Networks, I raised a ticket via the 'Ask a question of the Support team' with a reply of 'Unfortunately this is not something we can offer direct support on', and suggested I raise it here.
(http://usertools.plus.net/tutorials/id/18 #Backups and http://community.plus.net/forum/index.php/topic,84740.msg741300.html#msg741300 both suggest you raise a ticket).
So does anyone have any advice on how to raise CRON issues, specifically who they are sent to and who deals with them.
thanks
Hope I don't get into a 'raise a ticket, raise on forum,raise a ticket...' stack overflow !

[#2]

Hi Marku,
It looks like this has been picked up for you, I'm sorry for the delay. I've had a word with the agent concerned as this is something our networks team can do for you (indeed it has now been done).