DSTV cancellation, services cancelled but debit orders still paying

Unfortunately after multiple attempts of cancelling my subscription via every way i know how, DSTV continues charging me and messing with my payment methods. For January cancellation, i processed via the myDSTV app yet there we go charging me, then we tried the chat function on their website and again they charge me.....note though that from the start of January however that i dont have the compact package i'm being charged for so no service and still taking money off my account via debit order.

Change my payment method to cash on 02/03 after yet another debit order goes off and today 11/03 i get a thank you sms for changing payment method back to debit order!!!! How do i get rid of this bad rash that just wont go away. I've cancelled due to the cost being crazy at these times when most of us are cutting budgets and the large company just pulls money out your account with no concern. Very very very unhappy!