UNAUTHORISED DEBIT ORDER ON MY BANK ACCOUNT

I would like to bring to your attention that I had a debit on my account on Friday the 19-06-2015 of R280.00. I called in on Friday and left an urgent message with Nicolette who was extremely rude, to call me back. It is now Monday and I have yet to hear from you. I sent an e-mail to one of the Directors and am still waiting for a response. Please advise urgently before I take legal action. I will explore all avenues to expose these types of practices. I expect a call immediately.