I went through 3 interviews with a week lapse between each one. I met with general HR, the call center manager, as well as the call center manager's boss. All asked similar questions. It would have been better if all 3 were in the same room at the same time.

Waited an hour in the lobby to be called back.You first interview with a normal HR employee and if they like you they will set up an interview with a manager that you may be assigned to, provided you get the job.