Hello Mike,
Thanks. Yes, I received the official offer per email on February 17. I have yet to receive the official letter though (probably because the postal system in the Philippines is not reliable at all).
Don't worry too much about your ESOP application though; I assume that different departments handle the scholarship applications differently.
The professor who interviewed me just asked about my thesis proposal, my undergraduate thesis and why I wanted to attend the program that I applied to. The interview was only about 15 minutes and she told me that she would endorse my scholarship application at the end of it.
Best,
K