Telkom charged customer monthly for inactive service

I cancelled service with Telkom on the 23rd of June 2020 and I am being charged monthly for the service I am not even using. I have contacted Telkom more than 3x already regarding my cancellation and I am not receiving any joy. My contract was for R239 and last month they charger me R840, before June they also charged me R210 while not using any of their services. I need all my money back I am Tired. I have been charged Approximately R1418 for NOTHING. I am tired of also waiting 30 mins on the line before I get through to their consultants.