Cancellation request

I called Customer Services to request for my contract to be cancelled back in November last year. I was asked to complete a form , which I did and sent it to the cancellation team. I got a reply to say it will take 21 days. What happened next , I got a bill the contract was not cancelled. I called again spoke to a lady, and told her I asked for the contract to be cancelled. I was sent a text with a link , this took me to the website. Why I don't know. I got a text again in January and guess what it's a BILL by now the amount has doubled. I'm fuming now because how hard is it to cancel a contract. I called the Customer Service AGAIN on 31 January , this is now the third call , I spoke to Tyrone Scott , he sounded very keen to help, he asked me to forward the emails and form to his email address which I did, he told me he would have his manager sort it out. Me thinking this is now going to happen and I don't need to stress about it any longer . Days has passed and I did not hear from Tyron nor any automated response. To my surprise I got another bill the amount is now more. I emailed Tyrone again on the 15 February for feedback and to date no response at all. My number is now disconnected leaving me with no phone , what do I do in a case of an emergency. I called Customer Service again this is probably the 6th contact I've made , I've lost count already. I spoke to Sibusisiwe Nyuswa, she told me the processed has changed the contract will be cancelled in 24hours , I told her I am not going to the pay thr bill , as I have requested to cancel the contract and all I got was failed promises, she told me if the services was used I have to pay, how dare she tell me that when my request was not honoured the first time around. How does one use a phone with no service, the phone will be useless. I am so disgusted in the level of service I have received and being with the network so long. All I ask is for my contract to be cancelled and I'm not paying any bill.