RUDE AND UNPROFESSIONAL CONSULTANT

I RECEIVED A CALL FROM A LADY BY THE NAME OF EDITH TODAY AT 08:59 SAYING SHE WAS CALLING FROM MBD CREDIT SOLUTIONS ON BEHALF OF FNB I ASKED WHICH FNB AND SHE SAID I MUST CONFIRM MY ID NO FIRST AND I WAS NOT ASKING HER TO DISCLOSE ANY DETAILS..EDITH'S TONE CHANGED AND SHE STARTED OVER TALKING ME AND WHEN I TOLD HER THAT SHE WAS RUDE SHE SAID TO ME THAT I WAS THE RUDE ONE SHE TOLD ME THAT I KNOW VERY WELL THAT I OWE FNB .I TOLD HER THAT SHE WAS FIRST SUPPOSED TO CHECK IF IT IS CONVENIENT TO TALK AND SHE SAID SHE'S FROM MBD AND THEY DO NOT DO THAT AND HER TONE WORSENED AS IF THOUGH IT WAS A PERSONAL CALL I AM NOT SURE IF THIS IS HOW CLIENT'S SHOULD BE TREATED JUST BECAUSE OF THEIR ACCOUNT STATUS