Blatant attempts to avoid processing contract cancellation

I have been trying to cancel my sim only contract ***) with Cell C for more than a week now. Every time I call their retentions number to get assistance I am told that I need to speak to a team leader to get the matter resolved. These team leaders are however conveniently never available. The first time I called last week the the agent assured me that the team leader would call me later that day. They did not. I called the next day to follow up on this, but because I did not know(the agent didn’t even tell me) the name of the team leader who was meant to call me, the agent said they could not assist me. So I had to start the process all over again and explain my issue. Again I was told a team leader would call me and yet again no call. There is obviously a blatant attempt to ignore customers going on here. I called again this morning and made special attempt to take note of the names of the agent I spoke to(Nondumiso) who told me that the supervisor (Jabulile) was in a meeting and would call me back before 10 am. I called after 10 am and was told that now she was in a meeting and should call back in a few minutes. I called back again and was told that she was actually trying to get hold of me and that I should hang up to allow her call to go through. No call came. Neither did I get any notification of someone trying to reach me via call waiting or voicemail. Yet again I call back to follow up and I am told that she is on another call with a customer and would call me as soon as she is done. Almost an hour later and still no call. It is very clear that Cell C is deliberately trying to make the cancellation process difficult and frustrating for customers in an attempt to make some people give up or at least slow the process in an attempt to continue collecting money in the interim. This is ********* and exploitative. I know my rights and I will not stand for it. If you do not assist with this issue within a reasonable time I will proceed to file a complaint with Icasa/ ombudsman