not closing my account and asking a monthly fee

Good day <br> <br> I settled my account in full twice and tried to close my cape union account, i phoned head office and get the amount a need to pay to close the account and pays it and then send the details to my account. i then receive an email that it takes up to 36 days to close the account and then they send me a bill that i need to pay this months monthly fee plus interest on it.<br> <br> How can it be that i cant settle and close this account, surely this cant be lawful.<br> <br> I am a customer that buys at least R5000 a year from old khaki but will never buy from them again and will move over to other brands because of R136.00 issue that they cannot resolve.<br> <br> BY FAR THE MOST *********** COMPANY THAT I HAVE EVER SUPPORTED.<br>