开始用Case inquires 三步曲吧:
Case Status Inquiries with the Service Centers
WASHINGTON – U. S. Citizenship and Immigration Services (USCIS) has issued
instructions on making inquiries with the agency’s four Service Centers.
Customers, community-based organizations and liaison groups should follow
this guidance when inquiring about case related issues. This new process
standardizes customer service and streamlines processing of customer
inquiries at USCIS Service Centers. The step-by-step instructions