Disconecting 3 times every month

I cancelled my service in May as I was moving into a flat where extra view was part of the rental agreement. In September they ran a debit order of R1400 through my acc after they had a system upgrade there were no funds for this debit so it put my acc into debit and the debit was returned leaving me with bank charges...please bear in mind I don't even have a subscription at this time. I moved into a house beginning November I went to my local installation store paid connection fee and subscription and installation at the agent. Everything was done installed happy days only to be disconnected 3 times in November due to no payment......I cancelled debit order authority from them seeing as how they take money as they please. This morning 3 December my first disconnection occured and I suspect we will repeat November once again because they do not know it they are Arthur or Martha at the billing department I spend a half hour on my cell phone once again I keep on incurring charges for my own pocket for reasons beyond my control. I'm at my wits end because this matter can not get resolved.