I'm an international student, who was planning to retake the MCAT this summer. I've been scheduling and postponing and rescheduling over and over since May. I have to travel to the US to take the exam, and due to lockdowns in my country, plus the bad covid situation in the US, I've been unable to travel. When I update my AMCAS to remove my planned date, should I also email the schools I've applied to, or will they be automatically notified when I change it?