<p>While I agree with gibby’s advice, it may happen that your GC won’t get much information from the admissions office, or it might be very general (like “the student was one of many students with excellent but similar qualifications”). If this is the result, I would still recommend sending in a letter of continued interest as well as any additional accomplishments. This can’t hurt. Of course, the most important thing to do if you are deferred is to look more broadly at your whole list for RD to make sure you have a good mix of reaches, matches, and safeties.</p>