Cancellation of Mobile Phone

I have been trying to cancel a mobile phone since November. I have made many phone calls and sent emails with no luck. I even drove to Port Elizabeth from Jeffreys Bay on the 10 December 2015 and I was told it would be cancelled on the 10 January. I am still getting billed for this. <br> When you phone you get put through from one person to the next and email says will respond in 48 to 72 hours!! <br> I will never recommend Telkom if this is the service you get.