bad sercice from MTN

I opened up a new contract last week Tuesday and got a handset and was promised data, minutes and SMS's (prorata) but even today nothing is loaded and I am so inconvenienced as my wife cant make calls or anything. This is really bad service and it is my first time with MTN and if this is how the treat their clients then I want out. I called their call centre last week with the issue and was told it will reflect within 48hrs. called them again last week and I got told the same response that it will reflect within 48hrs.