Telkom Billing Disaster

I have had nothing but problems with Telkom even before the installation of my ADLS line. To actually get the installation done took so much time and since then their billing has been incorrect. My line was installed on 17 September 2018 yet I am being billed prior to this. I have has to contact my bank to reverse their incorrect debit orders and then make the correct payment. I have logged numerous disputes with their billing department but their turnaround time is atrocious, the most recent was logged around 26 November which has still not been attended to. My service has now been suspended. I contacted their billing department early this morning and was informed that someone would contact me today and have the line re-activated, this person apologized for their error. I called back to follow up as I had not received a phone call and was informed by a different person that I must now pay, even though it is their error, to have my service re-activated. I then asked to speak to the supervisor who did not pick up the call when the call was transferred. To get two different responses on the same day is ridiculous