What is AMO's cancellation policy?

If you need to cancel your reserved application, then any payments made toward that application would be forfeited as payments are nonrefundable, outside of visa denials.
This is stated in the Rotation Policy, which all applicants agree to upon signup. 
This is because when you make a reservation, you reserve a doctor’s and their staff’s time, initiate our services and a program site’s preparation, as well as close the spot to other qualified applicants. Vacating a program seat often leads to an empty program slot that could have been taken by another trainee, and it affects our relationship with our preceptors who sometimes leave our platform due to cancellations.