Telkom billing Disgrace

I'd like to name and shame Telkom billing department, in April 2021 I upgraded my cell phone, not only one I even added another unit because the deal was so good so 2 phones same deal but since end of April after receiving my statement I've noticed an overcharge of R199 I went back to the mobile shop to advise they referred me to the billing department ever since up to November I have to phone telkom to get them to correct my account which is still not fixed I've requested that a Manager phone me last week to date not a call, telkom owes me R199 for September they debited my account over, and November account R199, was over debited, so last month I reversed the payment thought by doing that I'll draw attention for someone who is awake and they want their money would contact me immediately, to my sorrows not one instead a message to advise me about the reversal, I phoned my bank to instruct them to block the debit order they could to it for a fee and only 3 months also they said that by reversing telkom will list me as bad credit, I will reverse all my debit orders they deducted until my account is billed and send correctly to me, I received my new statement for December on the 4th, now showing again the incorrect billing plus a reversal charge/of R202 plus I refuse to pay this fee they must take of all this charges and send me a corrected account, they have my call history since April, or they must cancel my contract with immediate effect and I will not pay them they can take me to court and list me I don't care a damn,, help me to name and shame them they are pethetic I will not advise anyone to deal with them even worse their billing department,,,😒😒