data depletion and excessive billing

My 2 contracts with MTN have averaged R750 to R850 per month for the past 20 months. <br> July it was R1242 Aug it is now R1804. My S4 has no LTE, I use my personal WiFi at home for upgrades and some surfing, do not use instagram, my data setting is not on auto and my applications are closed. I am neither a big surfer of FB or the Internet so why would my bill be an extra R1000!<br> I asked MTN Pavilion for my itemised billing for June and July on 16 Aug at R21 per bill mogul and given *** but i am still waiting for the billing 2 weeks later!! . I now sent another email to their customer service and received ref ***8 but still no reply received. <br> There is no one interested at MTN to actually pick up the phone and call you to help and their email responses are so robotic which is very frustrating. <br> Data depletion and extra charging has been in the media recently, guess where there's smoke there's fire. <br> I demand my account be investigated and answers provided or I will have no choice but to cancel my debit order or seek legal advice as I feel financially abused. SO OVER IT!<br>