Lawrenceville Waitlist Letter

Pls help! When Lawrenceville asks if you want to stay on waitlist (keep in mind days before the deadline to pay for accepted students) and you reject the waitlist, do they send an email along the lines of “We understand that you don’t want to be on the waitlist” or “you haven’t yet completed the waitlist form”? I really need to know so that my parents don’t see if I reject it !