Credit Card Query

Good day I need assistance from the superiors of standard bank my ID *** 080 anyone who can assist please....so i had a credit card & last year i was retrenched. Standard bank put through a claim from card insurance since i couldn't pay as i am now unemployed fine that was sorted. Recently i was told that my card still has a balance which i need to pay its R3359.00 fine, I said i will pay it because i want to cancel the credit card. Its been 3-4weeks now im in & out the bank firstly i was given this acc to pay on *** i made payment from my Capitec acc the money was reversed back to my account, i went back to the bank spoke to Christinah 17/05 from collections and she said the account number was wrong, she then said i must pay on *** i done that, only to find to the money was reversed again back to my account..Why standard bank????? How do i go about cancelling the card, yes im not working but i will pay this balance asap coz i want to cancel but im not getting any assistance since 29/04 till date with this query....i need to cancel Asap because im not working.