Cancelation department failure

I called to cancel my one contract on 15 April 2017,which expired in march 2017. It was not cancelled at the end of April and I payed may I payed june I only payed my other contracts and called the call centre and went to vodaworld to sort the problem they said and showed my request was captured and that they will attend to it. Now we are in October I have use of my other contracts for 4 days a month and then my services are cut due to an outstanding amout of June 2017 for the contract I cancelled the call centre and canselation department dont know how to help me so if anyone can give me assistance in regards to service not renderd due to somebody who did not know how to there job please let me know. Because I am fed up with Vodacom and there call centre and threatning messages and no service. Must I go to an attorney or make a case of ***** by the police station or if somebody can give me the telephonically ombudsman telephone number or email it will be greatly appreciated.