Fnb is *** bank

I had an fusion account with FNB for years when COVID happen it was affect cause I was retrenched. 2022 I tried paying it but it was somehow not enough as they said cause instead of decreasing it would increase, 2023 I resumed paying for it but somehow September 2023 my account was closed without any form of communication from FNB as to why my account was closed and it was handed over to Nimbles . I only noticed it was closed October cause I would transfer the money to my account and bounce back which I didn't pay much attention to it . So from November 2023 till April 2024 It was my every month thing trying to figure out why my account was closed and whom was it handed over to Cause Nimble said it was not with them . Nimble only came back to me May saying they have my account okay fine we arranged payment plan ..so a guy my the name of Samuel Mkize from FNB gave me an account number to use when I transfer which it didn't work, so now to my surprise the very same account number 40xx***x***x8 he gave me comes in as my reference number. I tried calling and send him emails but his not answering nor replying my emails ...all I want is to pay off this ****en account cause I don't want anything to do with this ****y bank ..it is ****en annoying and it irritating the hell out of me ,cause if this account was not closed I would have finished paying it March 2024 . I don't want anything to do with this f** bank