reap off from DSTV

I called DSTV customer centre on ***, I am so angry I even forgot the name of the person I spoke to, I was inquiring about my payments, which are irregular, I am paying using Debit order, paying for DSTV access which is R105, then Explore access which is R99, plus 35 for insurance which comes to R334, Now I checked my statement for this month, it says I need to pay 433, I called to to ask why is my statement showing this much amount, they told me that I have an outstanding amount of R99 which is for showmax, I asked them, how can it be outstanding when they debit , I told him that from my account it shows that I paid all the amount as per norm, the guy made me hold for 20min plus, then he came back with reasons that I could not understand myself, he said there was technical error and payment did not reflect all, so how is it that one debit then only a certain amounts reflects, bearing in mind that the account they debit from is never without money, I make sure that all my debits go through, he still didn't give me a valid reason, he then said I should hold he is calling his superior, I held for an hour, using my airtime, I had to hang up. they can just close my account if they going to reap us off