Unrepentant, unremediable Thieving Discovery

It seems that, no matter which devision of Discovery you deal with, they do end up being thieving *******s!!! Because of the 16 year struggle I had with them for plundering MY bank account for ANOTHER member's medical aid contributions (although that member were making his own contributions), I finally decided to rid myself of as much of Discovery products as possible. To that end I paid off my Credit card on 2 Aug. 2019 & visited FNB (administering the account) to request closing the account. (I had an arrangement with FNB that I pay my Credit card between the first & the 8th of each month - & not end of month as per standard protocol). FNB said, that although they administer it, they can't close it. I have to contact Discovery. I then contacted Discovery, jumping through ALL their hoops with endlessly long forms, where you have to motivate why I want to close the account. I submitted the form on the 7th of August 2019. On 13 August 2019, I received a statement stating I owe them anew!!! But on 16 August Discovery sent me an e-mail that this account is actually now closed. (-WRefNo#***#- -MailRef#***#-). Then, out of the blue, FNB started hounding me in Nov 2019, alleging that my Discovery Credit Card account is in arrears! According to them, the account had NEVER been closed!!!! And in December Discovery started mailing me Credit Card statements again. I responded to these statements, to ask for explanation how I can owe money on a closed account - by their own declaration, closed account. On my query of 11/12/2019, I received (as per normal Discovery operations) only an automated reply (Ref#: ***). On 14 Jan I again received a Credit Card statement, again I queried. Automated response ***. On 22 Jan.2020 I received an e-mail from M.Govender, acknowledging my query, citing "a glitch" "preventing the change in status of my account" . M. Govender then goes on to assure me that the glitch have now been resolved & account will now be closed.(-WRefNo#:***#- -MailRef#***#-). On 5 February 2020, the very same M.Govender seems to have suffered a change of heart, now sending a late afternoon e-mail, presenting a severely time-limited sliding scale of payment I need to do, in order to be finally rid of them. (-WRefNo#***#- -MailRef#***#-). I read the e-mail on 6February2020, & immediately responded by paying the amount indicated as being payable for the 6th, instructing by bank to send proof of payment as an e-mail. Then sending an e-mail myself to confirm payment had been made. Again. As per usual with Discovery, an automated reply: the only response. (Ref#: ***). On 11 February 2020, I again received a Credit Card statement from Discovery, showing that they had INDEED received the payment on the 6th, EXACTLY as demanded, but I now once more owe them some more!!!! Daily queries again only elicit automated responses. (11February = Ref#: ***; 12 February = Ref#: ***). It seems Discovery is once again settling in for another 16 year dispute!!!!