Billed at out-of-bundle rates

I contacted Customer Care for them to refund a large amount charged on my contract for data at out-of-bundle rates. But it seems they are not willing to assist.<br> (1) I'm fully aware of the extreme price of out-of-bundle rates and therefore pay particular attention to SMSs that warn of the reducing data balance on my contract. When I get a SMS that my data is less than 424 MB, I always switch off my cellular data and then only use WIFI. <br> (2) Itemised billing shows an entry for R782.17 on 20/01/2015 at 06:23 in the morning for 1,577,168.63 KB.<br> (3) SMSs indicating that my data balance is reducing were all received on the same day, but in the evening at 18:29 after the fact.<br> (4) Switching off my cellular data immediately after the SMSs received was pointless, as it was all after the fact.<br> (5) What is the actual charge for, as I never use that much data at 06:23 in the morning? <br> (6) My Vodacom app still showed available data up until the end of January.<br> (7) I also requested how I can avoid this in the future by capping. But they rep**** that they could not cap my data.<br> <br> I feel cheated as I cannot afford this. I'm now also afraid to further use any data.<br> Please advise?<br> <br> <br> <br>