Caller ID for Vodacom

So Vodacom sells you a contract without caller-ID, it's like selling a car without a steering wheel - which you can purchase afterwards, - it's optional, like the common sense in Vodacom management. Then when phoning 111 to try and get caller-Id activated, one has to go through endless options just to be told that to get caller-id, you must install the Vodacom app, and they send you a link to this App. The problem is that there is no way to activate Caller-Id via this App ???? They do not have a human being on the other side of the phone you can speak to, so if your problem is not in their pre-programmed responses, then you are without any hope. Why, oh why would any brainless idiot decide to make caller-id optional, and why would any idiot make it so difficult to speak to an operator to get a simple thing sorted out ?