但是你可以試一試:CSC-XII.485@dhs.gov
我今年3月初最後一次收到的回複是:
We apologize for the inconvenience. However, the California Service
Center (CSC) no longer accepts inquiries from the general public via
email. All inquiries must be ted to the National Customer Service
Center by calling 1-800-375-5283. The National Customer Service Center
will route your inquiry to the appropriate USCIS District Office or
Service Center, and will track your inquiry to a final resolution. If
you've received a transfer notice regarding your case please inform the
National Customer Service Center at the time you your inquiry.
The National Customer Service is available Monday through Friday, 8:00
AM to 5:00 PM, PST. Thank you.