bad service

I was at berchekas mall in tembisa I was assisted by da lady called ntsako I only went to ask for account number since when I cannot see it on my temporary card, she asked for my id I told her I left it at home but she can use my finger print or card for authorisation... She refused to help m and asked me to go and try another branch I did not beleive the service I got from that ladie but fnb need to do something about these because its really bad service