Phone does not work at all

Here I am once again complaining about the same thing. Now I am being informed by the call centre there is no mention of my phone giving me problems. I cannot received calls, make calls or even get or send sms or anything for that matter. I am paying my account every month and I cant use my phone. How do you explain that. Now I am the one following up. Now I must wait another 72hrs before I know what the matter with my phone. What I don't understand is this? How can one department in sales get hold of me but not the IT department. I have left alternative numbers to get hold of me to 4 different employees at Telkom and nothing. I must call them to follow up. Passing the buck.... The service is pathetic. I am not happy with your service at all.