Billing problems and call centre staff unhelpful

I have had a great deal of problems with my DSTV account. Over the past 24 months I was charged incorrectly with journals being posted to my account and payment not being allocated. On 1-Feb-18 again I paid my normal premium of R874 as per the balance om my app. 2 days later a charge of R320 appeared on my account. I immediately disputed this, but this morning when I switched on my DSTV I was disconnected. I have had no reply w.r.t. my many disputes. When contacting them this morning it appeared they forgot to charge for a price lock plan for Jan. Surely they should not disconnect you if it is a billing problem on their side. I requested a statement from them and the statement is very confusing with many unknown debits and credits going through the account. Their statement balances do also not agree with the balance on their app. I seems they do not know what is going on on their accounts. The consultant Thobeka was also very rude and could not explain to me what the charge was for.