Unfair billing

In January I opted for the Explora bundle ..all the paper work was done ...installation was done by a local installer as the nearest installer was in Atlantis..as soon as my explora arrived before the installation was done I was already paying for Explora subscription..I was still running on HD Decoder....it wasn't long when I had to pay the explora price according to the monthly new price...I was phoned by an agent who needed to verify my banking details ..verification was done...hip hip hooray hubby now has new explora. In October last year I got a phone call from an agent at DSTV who informed me that I was in arrears with my monthly subscription to the tune of R9000-00....I said but that is impossible as DSTV had me on debit order...apparently the debit orders were not going through....so off I went to my bank to draw a statement and noticed that there were no debit orders going off.....much to my dismay as I did not have sms notification on my phone( I do now)....after numerous calls to the call centers and speaking to many many agents who just were unable to help me. My argument is why did DSTV wait so long to notify me that there was a problem with my debit order ...why didn't they just switch me off, or call me, or send me an email, or even send me notification to my postal address which is all my information on record with DSTV...not even a message on my TV via Explora....had they switched me off I would have been on my phone to them to find out what the problem was much earlier than R9000-00 later. I eventually managed get hold of Gersha Du Plessis in the Financial Dept. I explained to her the whole problem .....Gersha informed me that they installed a new system for debit orders which had some glitches......My whole argument is why should be stuck in such a great debt that DSTV created....I have been paying R1000-00 per month since October 2016 in good faith ...to date I have never received a Statement or Account of any kind ...somewhere something is awfully wrong possibly staff who didnt do their job properly...I don't have that kind of money to settle up with them...they created the debt by not making me aware of the problem..... Thank you.