Requesting FICA documents on an inactive account

I closed my accounts with ABSA almost 9 years ago and now all of a sudden I am being contacted to provide documents to re-FICA the account. I called them and was told that it will be refered, two days later again get a call to supply the documents. I finally get transferred to their Investments department and the woman just kept saying that they can't close the account and that I must go into the branch. I then told her just make note on the account that I am not going to be sending any documents because as far as I am concerned there isn't any accounts with them, just to be told that they can't make notes. So most probably it's going to end up looking as though I spoke to a ghost since she probably couldn't even note that I called in. I don't even have the account number anymore.