In case someone needs email addresses for booking an award, it seems Boston is very responsive compared to Los Angeles and San Francisco. I emailed Los Angeles several days ago and still haven't gotten a reply. I tried Boston late yesterday evening and got a response today. This was for an economy ticket from Denver to Honolulu on United Airlines. Here is the email address
[email protected]
They booked the award and they needed award ticket form, credit card form along with your ID and back and front of credit card.