Ridiculous Telkom price increases on 24 month contract!

If I could leave zero stars, I would...

I took out a 24 month for my family during covid. For a year I was charged the contract amount R645. A year or so into the contract I started being charged amounts over R1100 and more. Monthly. They would obviously cut off the internet if I paid the R645. I enquired and was told something about usage which makes no sense because it is uncapped. I was then call again and I'm told that it might be for a reconnection fee of R220 and an increase in July which would then amount to R940 at most. I'm getting bills of R1100 but no explanation. I called the call centre at least once a month. I complained on social media, via email and their portal. Getting the same response. I was supporting 3 households on one income. Budgeting is a priority. I stopped paying until I could get a clearer explanation of the bills. The. I started getting calls from bill collectors threatening me with court and blacklisting. I raised the same issue with them. During all of this I am calling Telkom. At some point I ask for an explanation of the bill changes all the way back to when they started. They inform me that they only save invoices up to 3 months before meaning that from April to September, I must just meekly submit to the gouging. I once again complain on social media, getting the same response that doesn't add up. My last interaction with them was me explicitly wanting to talk to someone who actually works in billing. I shared my email and contact details. No one got in touch. But a couple of months later the collectors called me with the same threats and no answers.

Surely I have rights as a consumer. If this is standard practice it can't be legal.

I just want this resolved