The worst customer experience in telecommunications.

Telkom really does provide the worst service ever. Dealing with them is a nightmare. The customer service is non-existent. The customer experience is horrible. I went to Telkom Clearwater on the 29th to change the debit order date to the 20th and it wasn't changed. Today I called the call centre to enquire and they said the debit order date is the 25th, so I asked them why they didn't debit on the 25th because there were funds in my account and they said they also dont know. The next thing you will say is that my account is in arrears for no reason. I've been battling with this debit order date for months now. What does one have to do in order for Telkom to assist clients efficiently?