Desperate to increase their sales

Good day<br> <br> My MTN account number is A*** my package is top up R360 on the 15 January 2016 my account was debited with R 650, I the called MTN and I was advice that I called in on the 27 November 2015 and request extra 1g of data monthly of which I did not ,a call was logged for investigation and possible reversal of the money to my bank account ref number *** was given, I called again on the26 January 2016 to follow up the matter and I was assisted by Mr Kaya Nkomo is he told me that the first call was logged incorrectly and that I have accepted a pop up screen on my cellphone that result in my account to be debited of which I don't agree with a new ref no *** was given. Can MTN take their data n return my money or possibility of terminating my contract as I don't know what will be my next month's deduction without my approval, or can I get a record that I did agree to that 1g.how can you debit some's bank account without verifying if his information?<br> <br>