Service Cancellation not done as requested

On 6 October 2015, I sent a service cancellation trough to Telkom. Got a reply from then that they will contact me within 72 business hours. On the 15 October 2015 after no call I sent another request to which I found the same reply and was contacted eventually and confirmed that the service will be cancelled and my last payment will be end October 2015. On the 11 November I received an email with my monthly bill. After trying to phone Telkom numerous times to sort this out no one answers the phone. I cancelled it, I haven't been using it sonce mid October and now I must pay for it again??? You quick to ask for money but useless in delivering a proper service woth the correct outcome. When we got Telkom it was a two month issue now that we want to cancel Telkom it's yet another issue!!!!