Ignoring my request concerning Debit payments

Yet again, Cell C have ignored my request to cease extracting funds by Debit order from my FNB A/C despite my 3 instructions to them and my repeated request for an itemised bill (Contract No. ***4). Although I did receive a phone call and a written promise of further enquires from MM of Cell C on 27 April 2015, I have heard nothing more since and yet R128.93 was again taken from my Bank A/C on 30 April 2015 without my permission. It was also obvious that MM of Cell C was not in possession of the facts of the matter and he even stated that Cell C owe me R25.07. Once again, I have put a STOP on Cell C payments at my Bank and had the payment of R128.93 reversed which I will continue to do every time that Cell C *******ly take this sum from my Bank A/C until such time that they supply me with an itemised final bill. I realize of course that Cell C employ staff who have a problem understanding English: this is an example from a letter I received from them on 13 April 2015, \Please direct your quarries to [Email Removed] but I would think that even the most stupid employee would understand that I require an invoice before making payment. "