Data charge for Data not used

I have been asking for Data Vaildation for weeks - I have refernce numbers to prove this and I call in every couple of days to find out what progress is being mad but iI receive the same answer from everyone (U will have your data validation report within 48 hours just pay your account and if there is a mistake you will be refunded LOL) I made my first complaint about a month ago - I never use my phone for the internet / I have all my background data resrticted / my phone is set to only update when Wi-Fi is available yet I have suddenly have internet charges of more than R660 per month - I also have a data line which I would I use my phone?<br> <br> I'm furious they expect me to pay for these charges when they cannot /will not tell me what they are for I used to pay around R700 per month but now it is regularly over R2000 (they even have the audacity to 'soft lock' my phone after my limit is reached despite there being a dispute in progress) - They spend millions advertising for new clients yet they cannot even help the ones that they already have