"As the first point of contact between a company and the client, a customer service representative must have impeccable communication skills and conflict resolution abilities. Expect your interview to consist of a lot of role-play or ""describe a time when..."" questions that will test your ability to deal with irate clients, work well under pressure, and maintain a calm and professional composure. Make sure to come ready to provide a sales pitch of your company's product."
Tell me of a time where you had a difficult customer on the phone, and how did you deal with it?
I would ask questions to narrow down what the real issue was using a calm voice. Then I would act upon the particular issue.