Bill Enquiry And Lack Of Service

I have been a loyal client for over a decade with Telkom however they seem to take advantage of my loyalty.

I keep on paying ridiculous amount on my bill each and every month. I have called their service desk several times enquiring about this issue and I have asked them to change my banking details from March 2023 as I am no longer using my old banking details. Nothing has been done from March as they're enjoying to see me paying penalties that could've been avoided. Only end of July 2023 my account details has been changed. Now I received an invoice for this month, again with ridiculous amount that needs to be paid. I called again today to dispute this and the staff there I think they just there for getting paid every month however the service and accountability it is not on their mandate. I spoke to one of the staff memeber by the name of Oletse(I don't know if I spell it correctly) and explained to him regarding my situation, as always no one is willing to take accountability, he made me hold for approximately 30 minutes even though he said I must hold for 2 minutes. I can't go on like this, I am not enjoying the service provided by Telkom. I can't wait for this contract to come to an end. I think this was the biggest mistake I have ever made. I want this issue to be resolved as I am not in a state of paying such ridiculous amount of money. Please sort out your house, the service is very very poor and disgusting.