ABSA refuses to close my paid-off credit card

I have been trying to get confirmation of closure of my credit card since 6 Nov 2020 when I settled the account in full. It's now 25 January 2021 and no confirmation has been received. Every time I phone I'm told that it will be transferred to the closure department and that they will phone me to confirm reason for closure.

Above has happened once after my initial closure request, however STILL NO WRITTEN CONFIRMATION of account closure has been received.

I've phoned twice after that and every time it is the same story, however nothing but lip service actually happens.

In the mean time the credit card extensions department keeps on phoning me to increase my limit, thus I know that my account is NOT closed.

How is ABSA allowed to refuse to close this account? I've paid it off, I've contacted all the relevant parties, why is this not being done??

Every time it's the same story, with no action. It's now been almost 3months!!!