MTN no data terrible service

I took out a new contract in August for a MTN made for me s with 2gb booster. Went in to the shop and everything was sorted. Except that I have never received any data from MTN.. The 2gb that I am paying for never comes. I have called at least 10 times, complained via the app, Facebook, and still not sorted. So now I have to buy data every week and in addition still pay for the data I'm not getting. I just received an sms saying my MTN choice 100 minutes has been activated. Seriously? Totally unacceptable service.. How can I complain and call so many times and they still get it wrong.? What if I need an Uber in an emergency? What if my kids are whatsapping me in an emergency and I am not receiving messages cos I don't have data? Come on MTN, is this ticket science? Just load my correct contract! Furious.