Did you send in any additional information for Upenn when you were deferred? Also, what was your gpa if you dont mind me asking?
Upenn only received my updated transcript (perhaps my 4.0 last semester helped), but nothing else. I was going to write a letter of CI, but changed my mind. I did write the why penn essay with my original app. As for my GPA, I'll give ya a ballpark, it is between 3.7 and 3.8.
Good Luck to those still waiting.