Incorrect Double Charging/Possible Mass *****

In a nutshell. Received two MTN statements in Dec 2015. On both statements SAME invoice numbers and amounts appear but the closing balance of the first statement is the opening balance of the second statement. Called the 808 in Dec and no luck. Emailed customercare email address with copies of 4 statements as well as a reconciliation of the account starting from 20 Oct 2015. Then Sanele Nhlapho indicated I must call the prepaid enquiries service. The prepaid call centre correctly indicated they cannot assist. I cancelled my contracts on 12 January and moved both lines to prepaid. Must I re-instate my contract before I will be helped ? Received call in Jan from MTN asking for my updated banking details to debit my account. I indicated to caller that my account was in credit and needed to be refunded not debited. I was incorrectly debit for an amount of R 37.21 in January when my final statement correctly indicated a credit balance of R 30.79. All this information was provided and supp****. So now MTN owes me R 68. Do this to all customers and MTN **********ly double their monthly income. Next step logging charges at SAPS.