Call: 1 (800) 375-5283.
Also read this link for more details:
https://immigrationroad.com/uscis/uscis-customer-service-phone-menu.php
Call: 1 (800) 375-5283.
Also read this link for more details:
https://immigrationroad.com/uscis/uscis-customer-service-phone-menu.php