Cancel subscriptions

Received error code BE1 on morning of 19/07/2015. Could not watch dstv on primary or extra-view. Contacted dstv and was told to take decoder in. Was told I had to pay in R600 to swap decoder. I told them I would rather cancel subscription. Phoned customer service and was told service would only be switched off 1/8/2015. I told them it was unacceptable as I was unable to watch from 19/07/2015 and I expected to be refunded from 19/07/2015. Was then put on hold to talk to a supervisor. Hung up after being on hold for 15 min.