Paid up letter extreme delays

I'm so angry, I have requested a paid up letter from telkom since 24February2020. They requested 14 days and I have them longer. Every time I call they escalate and ad 72hours. But never get back to you. I'm loosing jobs because of this and I'm so angry. This situation was created by telkom not communicating I still owed them after cancelling my contract around June 2019 last year after requesting the outstanding amount. Which they confirmed account cancelled and converted to prepaid, but they *******ly continued charging me and didn't bill me. Imagine my surprise after many months of the account being closed and my name being listed for a non existent contract.

I paid them and they still don't send me the paid up letter 1 month and counting. Terrible terrible terrible customer service. Never again will I allow myself to get into a contract with this network. I will never recommend them. Please give me my letter. Ke tswe mo lona.