Pathetic service

Good day , this morning I spoke to a staff member who was absolutely rude and unprofessional. I was doing a follow up on an application during the call she starts having a conversation with another person and then had the audacity to say it’s only 9:30. I get most people are working from home and the will be noise but when I asked sorry what did you say she says I am not speaking to you what pathetic service is this how your staff are trained to speak to clients. I want a manager to investigate this matter.