DSTV-Cancellation woes...

I cancelled dstv in writing as requested when I phoned to cancel on the 30 October 2021, I was told to do it in writing the day that the debit order goes through which was the 2nd of the month. On the 2nd December 2021 I cancelled the subscription in writing, to which I received a confirmation email on the 3 December 2021 stating that the subscription would be cancelled. My bank account was debited on 3 January 2022. When I reversed the payment, I was charged the amount of R70.00, which I want refunded to me by Multichoice. I feel Multichoice is *****ing peoples money when it comes to cancellations.. as they are not cancelling the collection of monies… I have now subscribed to Showmax.