The Embassy's SCS unit is open Monday through Friday from 8:30 a.m. to 12 noon and from 2 p.m. to 4 p.m., excluding U.S. and UK public holidays.
You may email us through our Contact Form. Please keep in mind that we cannot answer any questions related to U.S. nonimmigrant or immigrant visas, or legal permanent residence status (green cards) in the United States.
Our telephone number is  (0)20-7499-9000 (the main Embassy switchboard).
Twenty-four hour assistance is available for genuine emergencies at  (0)20-7499-9000.
Our mailing address is as follows:
Special Consular Services Unit
24 Grosvenor Square