BILLING ISSUES IMPOSSIBLE TO GET RESOLVED

Good day, I would like to voice my absolute disgust with MWEB's inability to solve my account/billing query. I have been trying to get my account sorted out for months via email (more 20), phone (more 10). I entered into a contract (100mbps Fibre line) at R849 per month in 2022. About seven months ago I noticed that they are taking R949 from my account. After phoning their Call Centre and holding on for more than 40 minutes, I was told that I am now paying R949 for a 250mbps line and I must phone their technical department who will sort out our Fibre line so that we will be able to receive this 250mbps. After contacting them by phone and spending more than one hour to try and upgrade our Fibre line, I was told that we were unable to receive the 5G signal, whatever that might mean, and that we must just accept that the 100mbps or 60mbps line is the only option. I was promised by the consultant/technician that their accounts department would be notified by their technical department and that my account would go back to R849 per month and that a credit would be passed for all the extra monies taken from my account. To my disgust, I received a debit order payment advice that R949 was again taken from my account for May 2024. I am getting so frustrated just to think that I have to again phone their Call Centre and go through the whole process again. I have given up now but really do not want to start looking for another service provider. PLEASE CAN SOMEBODY JUST HELP ME TO RESOLVE THIS PLAIN AND SIMPLE ISSUE!!!!