NO CUSTUMER SERVICES!!!!!

THIS IS MY SECOND COMPLAINT AS THE FIRST ONE ON THE 17TH OF APRIL WAS NOT SORTED OUT AS PROMISED BY THE COMPLAINTS TEAM LEADER ISHIE !!! I have upgraded on the 26th of January 2018 in the Paarl shop. I signed a contract for two years on the MTN Made For Me L at R 889, 00 per month, but since February until now my account was debited every month for R 1178, 00. I went to the Wellington shop for help, and they said they can't help I must go back to the Paarl shop, and with my luck they are renovating and are closed for a while, so I send my first email to ********** on the 12th of March with proof of my contract to ask them to change my debit order to R 889, 00 as to my contract I have signed! 19 emails later, a few calls to management at MTN, a complaint on Hello Peter and 11 weeks later, and this problem is still not resolved!!! I have so many different Reference numbers, but the last one is: 1- ********** 9096. I Received my bill and its looks like another R 1178, 00 will be deducted from my account on the 1st of June!!!