When they say to bring your course syllabi, they are referring to the courses for which they did not grant transfer credit. If you want them to reevaluate courses that didn’t transfer, you have to bring the syllabi from just those classes.
@PitLV2109 - I completed all of the courses in the articulation guide. I’m an Illinois CC student. I actually applied last year and I was rejected because I had too many credits to qualify as a sophomore and I was missing some prerequisites to qualify as a junior transfer for my major (physics). These articulation guides are pretty accurate in my experience, although they definitely don’t represent a contract or anything like that. The University of Illinois system is only partially on board with the Illinois Articulation Initiative as I understand.