Contract cancelled with mobile talk but TELKOM still bills me

In June a company by the name of Mobile contacted me saying they are calling on behalf of telkom,they offered me an upgrade on my current router line .I agreed.I later found out before the package was sent to that it is an additional line ,I immediately cancelled everything and mobile talk confirmed cancellation.When the package was delivered to me ,I requested it to be fetched as I had cancelled,mobile talk fetched the product....The contract was confirmed to be cancelled....On the 2nd August as a part of my statement,the contract that was cancelled appeared in my invoice,I immediately contacted telkom and notified them that the contract was cancelled and that ,they requested that I send an email with the receipt of collection and SMS.I did so.The lady said it would take 72hours to attend to.....I kept on following up during that week as no feedback was provided...A week later a lady from the detentions department contacted me saying she will first need confirmation from Mobile talk prior to cancellation ,I said there's an SMS from ....it's been over 3 weeks and this lady has never contacted me ,I wonder if even remembers.

I then requested to speak to a team leader by the name of Bongani Nkuna ,this was 2 weeks ago,he sounded like he wanted to help but unfortunately,my September invoices still includes an amount of a contract that was cancelled.Whats ironic about this is when I call Mobile Talk ,they everything is cancelled on their side and telkom should not be debting.

I guess each I will be 700 or 500 poorer,and still TELKOM would not care.....Since August I've been complaining,I hope they feel good about it...