No Assistance in Cancelling my Line-Cell C Customer Care NO SERVICE & ***********!

I have called a total of 4 times today.. the same number instructed 084 143 & have had no success in cancelling my line that is legiable for notice. The call centre keeps dropping my call. This is a basic human right to be able to cancel a contract when time comes. It is as if they do not want to assist me. I am so disappointed with Cell C & having 10 contacts with your network does not seem to bare any further service. And this is not the first time... all i want to do is cancel a line.. which by law & consumer right i can do. Out of desperation I have sent an email to your Customer Care & have also been told that may not be the best avenue of communication to use...but what must i do to cancel a line?? I work Mondays to Fridays and every alternate Saturday... your call centre does not work outside of these hours... Wonder if ICASA would be willing to investigate this violation? This is terrible service... people need to be aware of signing with a network, that offers absolutely no service when you need them. Making me reconsider carrying on with my own line...maybe its time for a change!