changing debit order date

I have been a subscriber for many years now I am just so angry. I have in this yr changed the date of my debit order 3x. After having my services suspended in Aug I contacted the call centre on th 28th Aug I was told to pay R778 and then I immediately paid R780. Keep in mind that for Aug I had no service! Yesterday the 6th Sept I see services suspended again I contact them now they want R652 to reconnect. My problem is why was my debit order date not changed according to dstv it was changed in Aug..... also I did not have service for a long period in Aug so why must I now pay R652 for something I did not receive? I was also informed that I will stay suspended until this amount is paid. My question why am I having to pay for services not rendered and for the admin not changing my debit order date? The best of all is dstv contacted me 2x to change debit order date. Really is this the way to go I must pay for dstv mistakes or their incompetence???