Still no feedback

I have been trying to obtain answers from netstar regarding my account. They claim that I am in arrears. I cancelled my account when I realised that on 1 month, they had debited me 3x the normal premium. I have been trying to get answers as to why the had stopped debiting me, and debited for 3 months, they cannot answer. They have now handed my account over, and I am not even at fault. My query is simple, I just want to know why they stopped debiting my account, and secondly, why did they not inform me when my premium didn't go off???? it's as simple as ABC, but altech cannot give me answers. I need urgent feedback, failimng which, I will escalate the matter further. If my name is black listed, due to your incompetence, all hell will break loose. ALTECH JUST GIVE ME A RESOLOUTION, SO THAT I CAN MOVE ON.