Telkom - impossible to do business with them

I tried to upgrade my wifi via Telkom online and received an SMS saying that the system could not find my ID number, I must call the sales department. I called them and was cut-off twice and then told that the hardware for my upgrade was sold out and I would need to order online, so that I could be on a waiting list. I was at the wrong number and gave me another number (which turned out to be technical) . When I finally got through, I was referred back to the first number. I then decided to check if my D-Link was faulty and just as a technician was doing a remote check, we were cut off. Really disappointing as I have used Telkom as my ISP since 2006 and never had any problems.