Worst Service Received

I have 2 mobile lines with telkom and my 24 month contract was over and due for an upgrade. I was billed an extra R349 per line for 5gb data which i was told was because the promotional period was over. I wasnt informed that there would be extra charges. So i logged a case and was told the extra amount will be credited to my account and was told that the outstanding balance would not affect an upgrade. So i decided to apply for an upgrade. The application was sent to their \back office"and i was told that i would get feedback within 3 days. Application was made on the 15th so i went back to check on the 18th December only to be told that the handset cannot be released due to the outstanding R698 and i have to wait until 22nd Dec for feedback. So i made payment and gave proof on 21December. I called again on 22nd Dec and the call was disconnected and i couldnt get through after that. I called again on 23rd December and was told that the case hasnt been attended to yet and it usually takes 48-72 working hours. My problem started with Telkom on the 11th Dec and its now the 23rd December. Im sure thats more than enough tym. Telkom admin has got to be the worst for customer service"""