<p>do I need to inform Penn? I’d kind of like to, since I went from an easy course to a much harder one…</p>
<p>Just send them an e-mail. If they don't care, they can delete it.</p>
<p><a href="mailto:records@admissions.upenn.edu">records@admissions.upenn.edu</a>
include full name, birthdate and last 4 digits of social security i believe. </p>
<p>same thing happened to me, and that's what a student working for my regional admissions officer said. you should call yours if you're unsure.</p>