Cancelling Telkom landline is IMPOSSIBLE!

Is there ANYONE who can advise how you go about cancelling a landline? I have cancelled my service online on 15 Aug (as we now have fibre and we're trying to save money) - Ironically I am now paying for fibre AND Telkom as I cannot cancel the line for love or money! You have to cancel it online - which I did. Then I called and was told to do it online so tried to cancel it again 1 month later as it still hadn't happened - and there - online, it says: 'cancellation request 15 Aug submitted' and it won't let me 'attach required documents". I then went in to a Telkom office - they tried and couldn't as it was "above their pay-grade". Then I went online again - and it still says "cancellation request 15 Aug submitted'. I called again - "we will look into it" and then called again - "go in to a Telkom office" blah blah blah AND now I have a bill of over a thousand rand AND I am being handed over for collection. Who or where do I find a higher authority to sort this out and cancel the service. I live in KZN - Sadly there is no minus10 rating on HelloPeter.... Anyone? Any advice? Any help? Any contact person (in the correct pay-grade!) Lee