USCIS: Avoid Payment Scams: USCIS Does Not Accept Fees By Phone or Email
Remember, USCIS officials will never ask for payment over the phone or in an email. If we need payment, we will mail a letter on official stationery requesting payment.
If you receive a scam email or phone call, report it to the Federal Trade Commission at http://1.usa.gov/1suOHSS. If you are not sure if it is a scam, forward the suspicious email to the USCIS Webmaster at email@example.com. USCIS will review the emails received and share with law enforcement agencies as appropriate.
Visit the Avoid Scams Initiative at www.uscis.gov/avoid-scams for more information on common scams and other important tips. If you have a question about your immigration record, call customer service at 800-375-5283 or make an InfoPass appointment at http://infopass.uscis.gov.