Cancellation of services and revise the BILL

I have to say that my experience with Telkom is literally the worst client experience ever, I requested a cancellation of all my services on 01 Aug 2017,I sent through the form and ID copy to ********** Subsequent to that I have been calling and sending emails about the matter, requesting the BILL to be revised because they are still billing me whereas I requested a cancellation. I was told the matter would be escalated but to date my services are still active. I need the services to be cancelled and the bill be revised with immediate effect. I want to pay the bill of but I will not pay for the billed months after my cancellation request. The client service has truly been pathetic and non-existent. I have hoping that I would receive a message or email informing me that my ADSL+line have cancelled and the bill has been revised but due to poor service none of that has happened, the only thing happening is the accumulating debt under my name…please urgently clear this up as I will not have another bill being sent to my mail box, I am expecting you to cancel my services and email/post me a revised bill (August 2017 dating back) before the end of December 2017.