Continue billing me after contract cancellation

Hi, my cancellation enquiry number is ***6. Since March, 2015 I have been trying to cancel my Home Office LTE contract with Telkom due to no signal - while still being billed for it. After much consternation I reported this to HelloPeter to try and get the matter resolved on Thursday 3 September, 2015 as I was getting nowhere with the service provided to me. After the HelloPeter report, Sipho from cancellations contacted me and informed me that my contract was now cancelled and there were no penalties required. He then told me that the matter was now escalated to the Billing Department and that someone would contact me to sort out the refund. No one has contacted me. And now guess what, I have been billed again after the contract was cancelled which is tantamount to *****ing. I am due a refund for monies debited from me for services not rendered since March! I am currently due R10 500-00 in a refund. Will someone from Telkom Billing please contact me to resolve the matter! I am still an existing Telkom customer with two sim cards and an ADSL line. All I want is this matter to be concluded. Can someone please contact me and attend to this URGENTLY.