This is a guess: If this is for a "lane change," then the school district likely wants the teacher to take college courses outside of the teacher's current certification area(s). It seems to me that the 30+ would be so that the teacher could potentially pass an additional certification exam in order to be able to teach that subject. Otherwise, why would a school district give a teacher a raise for taking 30 random college credits?
There is a bright side: You did waste some time, but you also gained 15 credit hours toward your goal in one summer, which is still quite good. I'm not sure any of the other teachers in the your district accomplished so much. Relax, breathe, and get clarification on what subject area courses they will accept from you (If I'm right, I suspect they won't accept ACE courses or her sisters) and ask about DSST. Please, let us know which CLEPs your district is accepting if you want us to advise further.
There is a bright side: You did waste some time, but you also gained 15 credit hours toward your goal in one summer, which is still quite good. I'm not sure any of the other teachers in the your district accomplished so much. Relax, breathe, and get clarification on what subject area courses they will accept from you (If I'm right, I suspect they won't accept ACE courses or her sisters) and ask about DSST. Please, let us know which CLEPs your district is accepting if you want us to advise further.