We are not paying for your mistakes. Reconnect us!

My wife and I have been getting unknown discounts on our dstv premium for the past two months . Then Yesterday when we went to pay for our dstv we were told webare owing because of the error their system was doing , before they can reconnect us. Multichoice , so now we need to pay for their errors? this is nonsenses , ********* and professional give us back our connection.