DSTV debited my account after I paid more than what I owed

I called the call center 2 weeks ago to change my account to debit order. After I had paid for reconnection and was told that I owe R680 which will be debited on the 15th of this month after changing my pay date from the 2nd to the 15th. On the 12th of October, I got an sms notification saying that my account is suspended because I owe R775, although I was told I owe less. I deposited R800 to avoid having to speak to yet another *********** call center agent. And then today my account gets debited with an amount of R285. I called the call center and was advised that the system is down and I need to wait. What sort of nonsense is this???? I demand my money bac****!! I am sick and tired of the poor service that o receive everytime I call the Pretoria call center. When I check my account on Dstv connect, it says I still owe another R230. This is completely unacceptable. I demand my money back in the next 24 hours. I refuse to pay over R1000, for a subscription that was supposed to cost me R480. You are about to lose a customer, I am at the end of my rope...I can not spend my days trying to fix some or other issue with multichoice...