putrid customer service

*** I have had an ongoing case since the 02/03/2016 where there has been promised call back unfulfilled regarding my minutes which have been depleted incorrectly. I have explained assurred about 48 hour turn around times on numerous occasions and explained query in details to 3 supervisors who have not honoured any calls. The ***********cy is beyond words. Hours of my time have been wasted on the call with the 3 supervisors I spoke to. I would just a break down of what happened in writing and my stress and inconvenience to be acknowledged. Is that to much to ask. If all my calls were listened to you would clearly identify that cell c is at fault. I have had similar cases Igln recent months with no resolution I should take my business else if this is how much cell values their customers.