Deliberate vague phone calls with bad audio - *****

I was contacted to be informed I am getting more data on my contract for the same amount. No mention of the word upgrade or not that I could hear.

I repeatedly asked if it was going to cost me more and was told no. I also repeatedly said I was struggling to hear everything the guy was saying and now I think that was deliberate.

I requested for a letter stating what was discussed in the call to be sent to me to confirm I agreed to the correct terms.

This all happened on 18/09/2023. Upon receipt, I realised I could not understand the document at all except it said upgrade with no permission from me. Minutes thereafter I receive a debit order request for R508 and I have an existing debit order of R106. I immediately reported ***** to you and my bank. Email sent to customer care on same day.

I just now received a statement for R376. I am not happy. I already canceled my Supersonic fibre due to your service and two other contracts. Must I do the same to this? We are at the end of it in any case.