Non existant service

If you look at my Hello Peter complaints, they are dominated by Telkom and them always having a bad ADSL service with slow to non-existant speeds. As someone that works from home there have been days I haven't had a service I have paid for - not that Telkom ever refunded me for non delivery. isn't that *****? Now I cancelled my ADSL with them - enough is enough. They say they will contact me within 72 hours - that was 18 Jan. See - total ineptitude and incompetence. Here's the kicker though. Over 20 faults in 1 year reported. Now I cancel and today after waiting half an hour phoning their billing department I am told I have to give 30 days notice! ***! I am not paying the bill - they can take me to court and let justice decide who the *********** ********** are!