I found the tone of the email, and of the interview, to be off. I was made to feel as if I was inconveniencing them. Perhaps I was interviewed to fill a quota, but I found it to be a negative experience from start to finish.

Intense for what the job is.. 3 rounds are not necessary. If you have customer service skills you can do this job. It's entry level - they act like you are a C-suite executive.