INCOMPETENCE AT BEST Edgars & CTM

I have paid my account in FULL on 3 September 2020. Not just the monthly payment but the full amount, They started to phone me saying I need to make a payment. I went to the bank and got proof & took it to the Brooklyn Branch. They said they will close the account, Needles to say they did not as I received a statement again charging me for interest and phone calls after I have paid the FULL amount, I took Proof again to the Kolonae branch, I have spent hours upon hours on the phone trying to sort this out. They have blacklisted my name at the credit bureau. I have spoken to managers at Edgars as well as CTM & still almost 6 months later I am STILL receiving statements charging me for their incompetence.