Wow. Now I never suspected that the possibility of someone inflating the enrollment numbers. How do they come up with an actual name and address of an actual student. I am assuming that the student is of the appropriate age to be attending high school as the letter didn't say otherwise, just that they had never enrolled or applied. Since the teacher didn't have anyone by that name in their classroom, it looks like there are two possible causes:
1. Gross incompetence, or
2. Enrollment fraud
If there is another reason that I haven't thought of, maybe the school district, or the public relations firm that they hired to polish their image, can address the question.