Wrongful and unjustified billing by Telkom

I took the fiber in May 2022 and my first installment was for R399 per month for a period of 2 years. My first installment was due in June and ever since due I have only been billed the correct for month only June and thereafter different amounts which are more than what we agreed upon. Now when I called I was referred to the fine print which does not arise in my instance based on the wording "Effective from 1 August 2022. Telkom will implement a price increase to certain (my emphasis) fixed and mobile products and services after a two-year price freeze". My account was increased before 1 August 2022 and I don't even have 6 months in my contract let alone 2 year-two price freeze. Now the call center agent instead of taking me to their confidence she dropped the phone on me. We appreciate that everyone had a rough patch in the past 2 years but that does not mean unconventional business tactics must be put in place to the detriment of consumers.