Deliberate and spiteful sabotage from Vodacom

Vodacom has not done a thing to fix the problem i posted earlier. I am unable to call my brother from my own cell phone. Strange though. That should i use another cell phone i get through immediately. So, Explain to me how this can go on. And tell me this is not deliberate and spiteful sabotage. I am sure i am not the only one out there having this experience. So it must mean that they simply do not care. Or it means that they have now decided it does not matter that they can in fact sabotage a customer and get away with it. I was called by them to find out about the issue, But nothing has happened since that call. "Modi" is the contact person. no surname. In case i need to speak to them again. What is this. A person pays for the service but then there is no service. I cannot call my own brother from my own cell phone. So then who do i call in case of an emergency. What the heck. Seriously wish there were more professional service providers to deal with?