lack of customer services and overcharged account

I have been trying to get hold of the call centre for the past 5 days and till now there is no respond. I have even communicated via email and I received a response by Gugulethu who has asked me to state me query which I did and yet she has not come back to me. I think mtn are a bunch of ****** who just debit money off clients accounts without informing them of what the charges are and when u contact them they treat u as if u are not paying them for their services. I would like a response today from them regarding my overcharged account or I will have to go to the customer protection services..