Did you already have the interview? If not, I am currently a campus rep, and the interview process was extremely relaxed. My recruiter just asked some generic questions about your involvement in school activities, and how you believe you would be beneficial in promoting the College Program. The interviewer will most likely ask you questions regarding your CP and what you did for work, how you liked it, and how you made friends on the program. After that, I had a phone interview with the current reps at my school, and that was also simple as well. She just asked me random questions to get to know me better.
Anyways, I hope this helps. Best of luck to you!