SERVICES FAILURE FROM AN FNB CONSULTANT

I HAD AN ISSUE WITH THE BANK DEBITING ON 24TH INSTEAD OF THE 25TH AS PER CONTRACT AGREEMENT.MY QUERY IS WHO'S LIABLE FOR THE BANK CHARGES I HAVE INCURRED AND MY CREDIT PROFILE BEING TARNISHED BY THEM DEBITING ON THE WRONG DAY,AFTER SENDING MY BANK STATEMENT AND SCREEN SHOTS FROM MY PHONE ON THE DAY THE INCIDENT HAPPEN.THE ABOVE MENTION LADY( PALESA SELLO) INSTEAD OF GIVING A SOLUTION,GIVES ME ATTITUDE AND HANGS ON ME.MY ISSUE REMINDS UNSOLVED BY HER LACK OF PROFESSIONALISM AND CUSTOMER SERVICE.