Money DEBITED from my account WITHOUT PERMISSION!!

Good day,<br> <br> I called early January to inform them that I will be selling my car and moving to the UK, and therefore to NOT renew my account in February/March. However, I see that R990 was debited from my account on the 1 February 2016. I pecifically went through the trouble to call and go through the whole long process, and the lady on the other end of the phone assured me it would not be renewed. But cleary it has, this in my opinion is THEFT as you had NO RIGHT to debit such a large amount out of my account!!!!!<br> The ref number shown is: DOM***3!!!<br> I have emailed and no response. If this is not rectified within the next 3 working days, I will demand interest.