One of my letter writers was supposed to upload his letter of recommendation for USC on 12/01, but now it's been 10 days and he still hasn't uploaded it. I've sent a reminder email, and he replied saying that he'll do it soon, but he ended up submitting letters to the schools due 12/15, and still neglected USC. I since then have sent a second and third reminder, both of which he hasn't responded to yet. Is he going to hate me if I keep pestering him? How do I remind him that he forgot to upload one of the letters?
I've already asked USC, and they said that although they will not penalize my application, they have started viewing applications on 12/02, and would want letters in ASAP. Since USC is my top choice, this is giving me serious anxiety and I don't know what to do...