Worst customer service by Telkom

Three months ago Telkom consultant misled me when I want to cancel the contract, I was shocked the following month instead of them charging less the debit R7800, I then call telkom to check want wrong, they didn't understand want is going on and certain lady help to make payment arrangements, but I have to pay R300 for telkom not being able to get their money, am refusing to pay that money, because I was mislead by their consultant not, their still debiting that R300, so every time there is money in my account, I have to dispute, their debit, they must fix their in house consultants before charging us wrongly because of their employees. Telkom must train their consultants about their products and how to deal with different Enquiries v