Overcharging & No Service Delivery

Upon upgrading the cellphone from a Samsung to an Iphone in May of 2015 things started to go wrong.<br> Our account was completely overcharged by more than R1000. The following month the same account was overcharged by more than R2000.<br> I have not changed the way in which I use my phone at all. At home we always use our WIFI and only when I am out and about do I turn on my mobile data. I have also not been receiving the 500Mb per month that is part of my contract. I have had to go to the bank and put a hold on the debit order as it seems MTN is doing nothing about the inquiries we have lodged. They never answer the phone and it took 3 weeks to get an email reply, but only after I said I was going to go to my Lawyer & Ombudsman.<br> We have the same issue of over charging with our Ipad, during the same time frame. <br> Mtn does nothing to take care of the situation. They just keep pushing the blame and logging \investigations"<br> This \""investigation\"" happened again when we went into the V&A Waterfront Branch on Monday the 7th of Septembar 2015. We have still heard nothing. <br> I had to use cash to purchase airtime and load my own data which was then shut off for no reason"