MTN deducted extra money the end of Jul & Aug 2015

At the end of July 2015 MTN deducted almost an extra R1000 of my savings account stating that we subscribed to the R6 per day and R7 per day subscriptions. Which is not true for we nether subscribe to these kind of stuff. We went to N1 City MTN in Goodwood and they could not help d.because their systems crashed. But in the meantime their were also customers sitting there with the same problem. Then we came back to MTN Oudtshoorn and they locked a query. Still to date we haven't heard anything from MTN. I phoned the call centre and explained to them that we do know how to read and work with internet. Not to be sarcastic. Then we took the sim card and they took off the subscriptions that we supposedly subscribed to. Now again today they deducted more money of our savings account saying we used more data. Which again is not true. Again they locked a query. But it is not affordable for us. And as I explained to the lady they have more excuses than anything. Because at Oudtshoorn branch there was more people with the same complaint. And it seems that MTN doesn't have the third party block. So anyone can put accounts on our name and we have to pay for it. We didn't give permission.