Conditionally accepted, but wasn't able to get in one class need to fulfill transfer requirements

I applied fall 2014 to several CSU’s I wished to attend in the Fall 2015. I only needed two more classes in order to fulfill the CSU requirements. I was offered conditional acceptance, but I wasn’t able to get in 1 of the classes I needed to get full acceptance. I already accepted my admission a few months ago to one of the schools, but now I’m afraid I won’t be able to attend because I couldn’t get in one of the classes I needed. I was wondering has this happened to anyone else? And if so, what did you do? Will I be able to attend still and take this class at the school I wish to attend, or take it simultaneously at a CC while attending a CSU? Or will I just be denied admission as a whole and have to reapply? I have an orientation at the CSU I wish to attend and was planning on telling them what happened.

Call the CSU in question and get your answer.