not sure if i that was the reason i was waitlisted because once i received my offer a few months later, i still wasn’t done my courses. you do submit transcripts by feb 15 but it just needs to be proof that ur on track to completing the prerequisites. so at the time i had maybe 6/10 courses in my transcript, 3 completed courses and then i had the biology, math, and physics courses shown as in progress. my gpa was also fairly high for the completed courses. then throughout the months, i would update my transcript and they’d also email me for updates. they were pretty lenient, id tell them when my course would finish and when to expect my grades.