Cancelled contract but still debiting my bank account

<p>I cancelled my data contract( ********** 576) on the 2nd June 2016, the contract expired beginning of the year. I completed and signed a cancellation letter which I emailed to ********** To this day Telkom is still debiting my bank account on a monthly basis. I'm always calling their customer call centre on a monthly basis to inform them that they should stop debiting my bank account because I have cancelled this contract , but they never stop. I need my money back for the last four months you have been debiting my bank account without my consent. It is ******* to do so.</p>