Eskom in Witbank charging double on meter readings

I have been trying to get my account with Eskom sorted out, but they just don't seem to want to help me. Eskom install a new smart meter at my plot, they said I don't have to submit the meter readings anymore as they have put in a smart meter. from September till November 2025 they billed me on estimates on the old meter and then in December the billed me from August 2025 till December 2025 on the new meter. I have been paying for a meter that I have been using and for a meter that was removed. I have been trying to contact them, but they do nothing. I went to Eskom park in Witbank and tried to go to the accounts department, they would not let me in and said I must go to the call center. I did but the security would not let me in, took my details . The call center phoned me once but I missed the call, I tried a few time to call them back but with no luck. Eskom has overcharged me and they don't want to talk to me or repay my money