Bad Attitude

On the 15/12/2015 at 10H53 I called the call centre of Sanlam Sky/SG***4 complaining about the debit order which they have switched on on my account on the 11/12/2015 with out consulting me as our agreement date is the 25th of every month because before that debit order won't be paid and return back using this number ***, so my concern is about the bank charges and the bad image which is going to appear on my bank statement for no reason. So instead getting helped by that lady which was helping me she became arrogant raising up her voice and cut the phone as I was still talking and she had never called me back showing that maybe it was a mistake and she confirmed already my details to trace my contacts. So I am still looking for the clarity from Sanlam about who gave them authority to switch on the debit order on my account with out my concern if it's another date except the one we agreed with and is that the way the thought their consultants to help the clients and remember she said all are recorded meaning that there is cassette/tape for our conversation. My bank statement now is dirty because of unpaid debt and this affects my future because I can't defend this.