Vodacom unhelpful and thieving

I have become increasingly frustrated with the lack of service from Vodacom.

1. Vodacom changed my bank details without my consent. Twice. No one can explain the how or why. Now I am expected to take MY time and go through the whole process again. No explanation, no accountability. The lackeys you get at the shops and call centers are there to sell a product, not provide after sale service. Tired of being sent from pillar to post.

2. I have business LTE wifi. I was away for two weeks, arrived on Saturday. I did not use all my last months data and no rol***** took place. Now suddenly, after three days, I have apparently used 70 gigs of my 150 gig data (which is enough for a whole month)? and no one can help. I will be lodging this with ICASA.