Payment deduction without any permission/cancelled

Hi, I have received a call from Mobile Talk who sold a contract plan which consists of a Tablet and mobile device.After a week I cancelled the order of which I received a text to confirm this has been done.<br> <br> Today - 18/12/2015, a debit of R150.00 was deducted from my account. I called Mobile Talk who confirmed the order has been cancelled and a payment was deducted from my bank account of which I did not authorize.<br> <br> On this particular call the agent tried to get me off the line without being of any customer service use. I feel extremely disappointed and upset due to taking money from my account even when I am not an existing customer of theirs. Also, why is it needed for me to send proof of payment when I cancelled the order in the first place as confirmed by their company.<br> <br> If this is not resolved I will take further action as taking debiting from my account without my permission is ********** activity!<br> <br> I am expecting either a call or email as to what a multi-million rand company can do for me due to the inconvenience they have caused as well as very poor service. I would not recommend dealing with this company to anyone!<br> <br> Disgusting service!