i applied for UCSF this year but I sent the supplemental to the payment address. I emailed the admissions office and they told me this could affect my application and that I should follow directions. They told me to mail in another application(no changes, they will check with orginal) but to have it next day delivery for them to accept my application. I told them to screw it(well, actually in my mind I told them to screw it). I immediately called up my bank and cancel my check. Now seeing all these rejections, I'm glad I did it. I saved $60! 👍