FNB WHY DO YOU PUT MY ACCOUNT ON HOLD FOR NO REASON

it has been three month now , FNB put my account on hold for a reason that I already sorted out since year 2020 , and they already close down the account number , now they come with the same issue again for an account that I am not using anymore. Now they are asking me for proof of goods delivery for an account I don't have anymore , is this possible ? Now my profile is still on hold again for the same issue that was resolved already . I was trying to open an account with Standard bank 2 weeks ago , and I was rejected because they told me FNB reported my ID number to be blocked for a ***** case that I know nothing about . I was asked to submit an affidavit , which I did since 2020 . I need an urgent solution to free my ID even if you people don't want me to be your client anymore . I need to open an account with other bank . Please release my ID from this whole dirty job you are going pls.