Irregular billing

My account has been R369 just about every month as I requested a closed account, but the last few months my debit order exceeded this amount. For the month of October I was billed R1,500 for data alone. After visiting the Mtn branch, and demanding an answer as to how this is possible, I was told that I would have to wait 21 business days for a report. <br> <br> This is pretty terrible customer service and does not provide any form of assurance that your customers are a priority to you. Neither does it promote confidence in the accuracy of your billings/accounts system or your already tarnished public perception. <br> <br> Reference received from the branch: Req:***