Unauthorized change of contract

Vodacom is a **** and has pathetic service, my data sim only contract for just R400 taken in May 2021 was recently changed in July or June 2022 to open line and be billed without my consent or approval. i need this matter to be resolve and the bill of R3979,72 charged to my account be reversed. This is really pathetic and annoying. How are we suppose to trust companies does chop and change our contract as they please. This is so wrong and i will be taking this matter further even to Ombudsman and even going to the Devi show to televise this ****.

the tele consultants send me from 1 department to another and they also deny me the call recording, this is unjust and ridiculous. i have been using Vodacom contracts for 8 years now and this is just a nightmare.