consultant dropped a line for me

I called their call centre to complain about a debit order I know nothing about and also wanted to block my card which I lost yesterday. The lady only said I cant help you without your card and dropped a line. She did not bother to tell me how to block the card because I was far from the bank.<br> <br> Their staff must not just drop our calls without explaining what must be done. I will open a new account at another bank FNB is tired of us.