Worse customer service and incorrectly billed for months with no help

The worse customer’s service, Incorrectly billed for months and I have been calling and calling and speaking to supervisors and managers who lie and do not get back to me and do not resolve my query that has been open since January 2022. Spoke to another supervisor called Friedan from customer care who also lies just like Mxolisi from cancellation. I cannot get the complaint resolved by Vodacom.