Telkom Inaction on Incorrect Billing

They keep billing me incorrectly, have added subscriptions I know nothing of, keep taking some "debit transfer" monthly and sometimes do not debit my account, claim the debit order was rejected just for me to end up paying that ridiculous rejection fee. I have sent a "Nompumelelo Jiyane" an email with my statements and a spreadsheet detailing every transaction on the statements. I did this so she can help or escalate me case as she had communicated that she would. It has been over 7 working days since I sent these in and until today she has not yet gotten back to me. I have sent follow up emails and still nothing.