I applied on their website and they called me the next day. It was just a 10-15 minute call to make sure that I knew what the position entailed and when I would be able to start if I was hired. We scheduled a phone interview for the next day which lasted about 45 minutes. It was all standard questions relating mostly to past customer service interactions. They called back about a week later to tell me they were interested and offered criticisms/advice about how my interview went which I found helpful. They're basically just looking for concise answers that show your thought process while working with a customer.