Telkom Fails

Cancelled my business ADSL and line last year December, as per Faith at the call center by sending a cancellation email. Subsequently I have called back and resent this same email to call center agents; Sanelesiswe, Veronica, Lerato (team leader), Quanele, Vuyokasi (supervisor). I have paid the account in Jan 2020 and have received a new amount due at the end of Feb which I WILL NOT pay.