Do asap. Indicate when you want to send him in. They will call you when there's a vacancy nearer to the date. My son waited almost a year to get into a newly open centre last time. Because they dont't solely based on first-come-first serve. They need to consider the child's age as well. Priority goes to siblings and those already in the centre graduating from the younger class. When you cfm taking the vacancy then you will need to pay the deposit and school fees.