Helping themselves to your money, as they please!!

On the 24th August Multichoice deducted R1711.00 from my account, the debit order should be R779.00. I immediately called customer service, profuse apologies, there's a problem with their system, unfortunately they can't refund, YOU have to go into the bank and get them to reverse it, I do not have the time to do this I make an arrangement with the agent that there will be no debit order until the overcharged amount is cleared. Well what a surprise, this month they have just deducted R1478.00, in two months a total of R1631.00 overcharged! and you are encouraging people to pay by debit order. HOW DARE YOU help yourself to my funds, no accounts or statements are ever sent either.