Vodacom's lack of customer service and arrogance when dealing with incorrect billing

I contacted their customer service to obtain assistance with incorrect billing. I have not received a statement for my one mobile line and have been billed for a Home internet Rental Plan which I have not subscribed to. Instead of me receiving a response as to what would be done internally to rectify these issues I was told about how I could resolve my own issues by logging onto their App - which I had done and could not find a way to report or engage to sort out these issues. The lack of accountability and responsibility regarding client accounts is simply amazing. The arrogance regarding how to deal with long standing clients and the pure lack of general customer service is shown by the way they are trying to handle my billing queries with no respect the impact these billing errors could have on the customer, e.g. cut off the line due to non-payment or me being black listed because of me not being able to pay their bills for items which I have not subscribed to! Lastly, from the time of my query being emailed to them, it took 3 working days before I even received a response, albeit a useless response which did not address my issues raised