So I got accepted to my third choice, and got waitlisted at my first and second. The deposit fee is $1500- first $750 is due by April 4th, the second $750 is due by May 1st. Is it okay to pay the first deposit and sign the enrollment contract if I'm still planning on attending my first or second choice if I get in? Of course I contacted the school, no one picked up so I'll call tomorrow as well.