Telkom is a terrible service provider

Most disappointed with telkom yet again. This is the 3rd time int he past 18 months that they dont know what they are doing. yet again they have debited my account for over R600 for bounced debits only for the month of May. i was asked to send through my bank statement on which it clearly shows that the money was in before they debited it and the debit was successful. a week has gone by and they have not responded to any of my emails, neither have they reverted with feedback. so further to my monthly fee they have taken an excess of over R600 extra, which was meant to pay this months rent. after alerting them to my dilemma no one bothered to respond promptly, i just got retrenched this month so things are tight and now to add to the pressure telkom is so predictable in over charging people as usual. No one knows whats happening when you call the call center, Telkom is a terrible service provider. had similar problems on landlines and now on my mobile data account. If i dont get a prompt response i will escalate to the cpa.