BAD SERVICE

My services has been terminated twice in a month due to a fault on their part. Ever since their upgrade I am having endless problems with the service and am totally dissatisfied. They just dont seem to care about the in competance on their part. All you get is an apology and the same thing happens again. Whenever you ask to speak to a supervisor or a team leader they are never available or you wait more than 20 minutes before they take the call. I have just held on for more than 20 minutes only to be told the supervisor is not available. I then get told that I am in arrears and I will be debited 2 subscriptions. Last month when this happened I was told the payment was successful & it was a fault on their side. I then get put on hold again after which I terminated the call. I told the consultant numerous times that I am calling from my cell phone however that did not seem to make a difference. I spent a total of 29 minutes on this call. Who is going to compensate me for my airtime & the inconvenience. I am beside myself & do not know what to do.