refund

I have cancelled the debit order , i have been paying montly instalment at either shoprite , now multi choice have decided to debit my Absa account and i told them i dont want that account to be debited . Now i have an unpaid debit order fee because the debit order didnt go through . i need a refund on that unpaid fee and also i need to downgrade the service that i am using to a cheaper service , i saw a subscription of R99 i need to be contacted and be told more about it