Telkom sucks

I had a contract with telkom back in 2019 which I finish paying in 2022, my credit was updated n it was not in my report until November 2023 the account resurfaced with the balance of 156. I called to enquire n never got an answer as to where the 156 came from, I left it like that till now when I realise that it has been handed over. Now the problem is now I decided let me just pay it n I am told I need to speak to their lawyers but every time I call to get the lawyers contacts, I am given a different number n they are not woking.