I am waiting to hear back from a few american universities about my application for a phd in theoretical physics. I just got news that I have obtained external funding from my home (European) country, enough to cover the first year (tuition + stipend). I hope this will positively influence my application. However, what is the best way to make sure the admission committees get this updated info? I have just sent an email to each university, to the email address I could find that was most closely related to the office of graduate admissions for the physics programme. Should I just hope that that suffices, or should I also try other measures like calling? Thank you!