Incorrect or inconsistent bills

Good morning MTN<br> <br> I've been on the phone for 45min with a consultant named Sergio, he's trying to assist me with the account. I received an sms stating the amount to be debited which is more than what was on my invoice. He tried explaining that my account was in arrears. I ask him how was that possible since MTN has free reign on my account on a debit order. He tried bless his soul until he said that he was escalating to his supervisor and coming back to me. After 15 minutes he came back and said his supervisor was still looking at my account and he will be back. 10 minutes later call was hung up. <br> <br> This is what I want from you<br> 1. Who's his supervisor and why was my call cut<br> 2. Why didn't they call me back when they realised that my call was cut<br> 3. Why is my account in arrears <br> 4. Credit the amount that not supposed to be on my account <br> 5. Reverse the magtape as I will not have the R2454 that will be debited