Billing of incorrect amount

Worst experience ever! Got sold a deal which was R605 per month, 2 months later I get an email to say they have discontinued that certain option and I will upgraded to another package at R650 per month, 1 month later I get debited R1048! I called and disputed it - case number ***1. Issue was not resolved which resulted in another premium of R1048 going off! How long does it take to resolve a simple billing error! I dont have extra money to keep for something I did not sign up too! I have other bills to pay as well! Please cancel my subscription! Worst customer care as no one knows what is going on! They keep saying it will be escalated, I have had enough. You are welcome to call me on ***.