MTN billing - NO WORDS

I have a lot of reference numbers. They keep cutting the line for non payments that they say came from Nashua before giving it over to MTN in Dec 2014. Nashua say the balance was zero rand. Then MTN say it is for March and April 2015 but bank statements show it went through. This month they deducted R3631.89 . They cant give proof which month they did not receive payments. I would like a refund as soon as possible from them they are *****ing our money and the people is not trained to help. How can one try to sort this out over a phone which you are on for more than a hour. <br> <br> The number is ***<br> Shaun de Winnaar