MTN rewards *****s from my parents

I have reported MTN already in June/July on behalf of my parents. Now the problem is back again and MNT assistants says it is not there problem but MNT Rewards. They got a call informing them if they do not pay R440 phone will be cut off. They went back again to MNT Wonderpark Mall and Sandra assisted them again, again informing them not really her work because it is MNT Rewards. Initially they **** to my parents informing them the 2nd simcard is for more data on the phone. When nothing happened, they went to MTN and they informed them it is for Internet not phone data. My dad immediately tried to cancel it, but it took 3 months to resolve, he cancelled the debit order and MNT would put it through under another reference. Finally it stopped. Now Sandra said it was activated again in July and that is why they said my parents are 3 months behind. My parents did not active it so another ********** act!!! Somebody better call me from MTN to sort it out. I have mailed a complaint already but nothing. My parents are old and sick and can't deal with this stress. Please do not use MNT and MTN rewards. They lie to clients and their customer service is non existing. If anybody from MTN and MTN rewards reads this call me - ********** 784