Charged for Data that was never received

I had Mtn call within January to sell me a data bundle package and after a 14 minute call I had been signed up for this package. On the first day of February my account was debited R89. 00 yet I have yet to receive my data. After calling mtn and explaining my story I got told that the data package only applies to contracts and I am a prepaid customer. How they got this wrong in the first place I can't understand. I then was informed that they will cancel the order and reimburse my money. About 2days later I received a email saying welcome to the data bundle package, I then called mtn again and they informed me that the account was closed and I should receive my money back after 10 days. During this time I have recorded all this information on email to mtn and after 3 emails sent, I have yet to receive feedback or even acknowledgement. I am still waiting for the my money to be paid back from the 5th of February and after being a loyal customer for over 8 years, I am considering moving to another service provider. This is very disappointing.