Fnb Credit card closer

I have been banking with this bank all my working years. Had a credit account which took so much from me to close. I kept going back and forth with fnb secure to close it and finally on the 09th of October 2025 I was assisted on secure chat by Rookshana who asked me to pay a further R2372 in order to close the account. I paid and confirmed that i did and Rookshana confirmed that my account is closed and that i will get a closure letter. I never got the letter but the account was removed from my profile. All along i knew my credit card is closed. Today i see the account back on my profile again with a negative balance. Is fnb trying to bleed the poor in to being poorer?? Why was i asked to pay an amount over and above what i saw due on the account and then now again I see i am charged interest on the 29th of October??? When the account was closed on the 09th??? I want nothing to do with this bank.