MTN Service is terrible

I have been trying to open a ***** case on my account since the beginning of February. I first tried a MNT branch who gave me the number of their help desk. I then had to send in an affidavit with my ID. I have now spoken to 5 people and resent my documents to them. I also completed an online ***** form with MTN. got an automated ref number. No one has updated my account with any of the requests and I have no come back from anyone. So nothing has been done and the bills still keep coming in.