Vodacom is the worst! Bad service

I am having endless issues with vodacom. My normal debit date is on the 30th of each month. I paid my account online a few days before the debit date. And now i have realised that they have added an penalty fee of R100.88c to my account for the month of June 2023. This is unfair because i am being penalised for paying my account im advance. The call centre staff is extremely inhelpful and arrogant, i asked to speak to a Manager and i was put through to a supervisor who was worse than the normal call centre agent. She refused to put me through to a Manager as she believes that the Manager wouldnt be able to assist in this regard. Vodacom has disapointed me on every level as you would expect much better/helpful service from this company. I have been with Vodacom for many years and i must say that the service im receiving right now is very bad! Every month there's billing issues. Vodacom do better please! Please employ capable staff and teach them proper customer service.