Pooooooor service, account management

I had unexpected medical expenses which led to a missed payment, which caused invoice to return unpaid roughly 5-6 months ago which caused my service to be suspended. I then phoned at the end of that month to have my service reinstated where accounts department informed me that I have to pay the 2 months before reinstating my service. I then made payment arrangement to have arrears ammount deducted on the 28th of each month at an ammount of R100 per month with the accounts team leader. Since then they cut my service 3or4 times. where I have to deal with utter incompetence where the Team leader says that there was no such arrangements that she knows about. She promised to listen to the recording and get back to me. after 4 follow up calls she finally decided that I am worthy of her time and listened to the call confirming what I have said all along. She promised to fix the issue. She fixed it by double deducting of my account that month. Finally I managed to get my refund, after numerous calls, requesting an escallations manager, which I believe was not done because the accounts department is covering up the incompetence of their team leader, if it was done management could not care less about their customers. After this I received an email saying I will get 50% discount on my account for the next 3 months as well as a credit note for R100, all good gestures however I was billed the full ammount again debited on the wrong date the complete ammount not less 50% as promised. whatsapp chat says accounts department will call me not very hopefull of getting assisted so I think I will have to report them to Icasa