Over charged and wont allow me to speak to manager

I called into DSTV as they overcharged me. I called in spoke to an agent who was trying to convince me that there is no fault on DSTV side, let me hold 20 minutes for a manager and put down.They made a mistake with reconnecting my decoders after we were on holiday. When we called in they reconnected the incorrect decoder, we called back to advise them and they said they had an issue reconnecting(relink to explorer) the decoder (they said they connected the standard decoder) and they would get someone to call back which they did not. At this point we still only had our explorer working and not our secondary PVR. We waited a couple of days and then i called back in to say the PVR is still not working and they finally did a reconnect. Not once did they say that i would be charged to connect while we are away at the holiday house and neither did they say we will be charged when we get back for a service that we did not have. Up until sometime last week, only our explorer was working and NO OTHER DECODER was as they did not relink like they were meant to on the 12/13 october. I have reversed my debit order and await being suspended. I will pay them the R799 i owe them and nothing more