Total Dissapointment

I am really disappointed by the service rendered to me today. After spending nearly 30 minutes on the phone with a Customer Experience agent (who did not sound like she knew what she was doing) trying to change my banking details I was requested to send her a bank statement which I comp**** with. I sent her the email this morning at 9h45 just to only now receive a response at 13h50 saying that they do not accept Discovery bank as a method of payment as they are still a new bank. So am I now to make sure that every month I have enough money in the account I DO NOT USE just for this specific debit order? Why was I able to change my debit order account for ALL my other debit orders BUT with Telkom? I am truly a VERY disappointed customer and will soon start looking to move my LTE contract elsewhere....