Fnb refusing to close an account

I am so tired and frustrated with FNB they are sending me up and down regarding an account I paid in full in 2021 and closed. The consultant that was helping me close the account in 2021 did not finish the process now in 2025 they are telling me I owe money again on the account that was supposed to be closed long ago . When I follow up at the branch they tell me the account is at high risk they can not close it but I paid in full they have reactivated the account that has been not in use for so long . Now my main worry it is going to accumulate bank charges again . They dont communicate with me as to what is happening when i call they say i must go to the branch at the branch they can not help they must send emails with a turn around time of more than 2 weeks. I am very frustrated 😠