Incorrect Billing - No Refund

1. Handset Upgraded May 2015 2. First invoice = charged 3 x handsets 3. Incorrect funds taken by debit card from my account. 4. Logged service request for account / billing to be fixed. 5. Stopped debit order because second billing still showed Incorrect amount. 6. Vodacom credit second billing which was not deducted from my account. Credit note was issued. NOT refunding first actual extra amount that was deducted from account.<br> 7. Numerous service requests was logged. Three helpdesk agent saw the actual problem and escalated, but my requests was denied for refund / credit my account. It seemed that refunding / crediting me was not an option although the problem was recognised.<br> 5 Months down the line and still no positive results what extremely poor service from this large company.<br> <br> The initial problem was the incorrect billing on the first account after the handset upgrade, double what it extra would have been. Today was my last call to the customer care line, as it was fruitless.<br> Poor, extremely poor that that they do not understand their own billing system.<br> <br> I have all supporting documents and proof of all service requests logged.