Unacceptable Poorest Service!!!

On the 16th of November i purchased 50GB data for R225 from the Mo'Town offers which i had been purchasing monthly for the past 3 months. My money was taken but i was never credited the 50GB data that i purchased. I called on the same day around 10am and i was told that my case would be resolved in the next 72 hours and i was given a case number (***8). I have been doing follow ups but the agents keep telling me that my case is still under investigation. It has been 15 full days now and i am still not credited my data, 15 full days for something that takes them up to 72 hours to resolve!! I have never received such a horrible service like this.