Hi guys, I'm also an international student and also received that email. You really do need to submit that document and it's not optional, they may be able to extend the deadline to submit it but you have to show it to get your admission decision results after the interview.
In the case of needing an acceptance letter before you get your funds I suggest you email and ask about that but based on my experience they will ask you to show proof of funds in another way and you can change the method of how you pay later.
I applied to USC for Sprint 2014 had an interview and then the proof of financial doc became an issue because in order to get your admission decision after the interview round you need to be able to show you can attend
"
International applicants (those who are, or will be, in the United States on a non-immigrant visa) must submit documented evidence of financial support. The U.S. government requires that all international student applicants provide proof of ability to pay tuition and living expenses for themselves and their dependents (if applicable) before a formal letter of admission and an I-20 or DS-2019 Certificate of Eligibility can be issued." - http://www.usc.edu/admission/graduate/international/financialsupport.html
So I emailed explaining that I didn't have another way of showing proof of funds and my student loan request is still being reviwed for funding outside of The Netherlands.
And then I got this response:
"Unfortunately, we will not be able to place a final decision until this documentation is received, and given the short turnaround (classes being about 3 months away), there is a cutoff time to which we can wait for these to be processed. The only thing I can think of is that may want to reapply and be considered for Fall 2014. You will have go through the admissions process again of having your application reviewed. What I might be able to do is have your application updated (which means that you will not have to resubmit the application and fee). If you wish to do this, I would make sure that you will be able to have your documentation in order and have it sent to
usci20@usc.edu, that way it's all in your file.
Let me know what you plan on doing."
So I've been limbo since then. I think out of all the schools USC has less funding/scholarship options for internationals (which sucks).
I thought that because they really wanted me or that I got in (vain moment) cause they kept on sending me emails like when we need your proof of financial etc. but then I searched in this forum and found someone who had a similar situation but when he submitted his proof of funds he still got rejected and he was annoyed that he had to jump through hoops to get dissed. It's a really odd system they have.
Last piece of not so fun news:
Financial Aid and Scholarships
International students are
not eligible for federal or university need-based financial aid nor are they eligible for application fee waivers.
International students are eligible for academic department fellowships, teaching and research assistantships, and merit-based tuition waivers. For more information, contact the department to which you are seeking admission
-
http://www.usc.edu/admission/graduate/international/financialsupport.html
Good luck everyone I hope we survive this process and get rewarded with some good news!