Call Centre Nightmare

I have tried to cancel our business account now for the 3rd time. I can never speak to the same consultant. I have been told it is cancelled and then suddenly it is not? They all have different ideas of what is going on. No notes get left on my account so every time I phone I have to start from the beginning again. Where does this end? I am continuing to pay for a phone line which I am not using because your employees are too *********** to do their job. And then the cherry on top was when they told me the cancellation department do not have phone lines?? There are whole departments at Telkom, a telecomunications company, that do not have phones? ***