EDGARS refuses to close my account

I settled my Edgars account at the end of August 2020 and requested that my account be closed with no further monthly payments. The lady confirmed that my account will be closed. Since then, I am still receiving weekly SMSs, emails and phone calls that an amount is still due on my account. I have spoken to numerous people to assist in sorting this out and they all promise to phone me back. I tried phoning again today with no luck. I will never buy at Edgars again and will never recommend anyone open an account there. I am also lodging a complaint with the NCR and the NCC due to their unwillingness to close my account. I do not owe them any money and this is affecting my credit record, which I will include in my NCR complaint. NEVER open an Edgars account!!!!!!