NO COMMUNICATION BETWEEN MTN's DEPARTMENTS

I am furious because I have changed to prepaid and have just received ANOTHER message that I have been sent my monthly account (sent to the wrong email address as they have habitually done and which they have never managed to correct) and now they are taking money from my bank account yet again. Your communication between departments is appalling. from hazelJ not hazelG (emphasizing yet again what my correct gmail account is.)