PreK ?

How long does it take for school apps to be accepted where you are? I'm in NC and have put in an application for enrollment for my soon to be four year old and I've been checking it constantly because she's been excited for school since she learned what it was lol. Also, are there any reasons for a child to be denied enrollment besides not having proper paperwork ? She has everything the system needs. I'm worried they'll stop taking applications or something before she's accepted even though I put her app in before the current school year ended.