These people call you because you somehow thought you were getting in contact with the U.S. Immigration center and they will charge you to fill out the applications needed for citizenship or what ever the case maybe. after you fill out the pre app and it gets to the credit card part and you leave the website they will call your number asking you if you need help and want to charge you for the application and it doesn't include the real application to the real Immigration offices.
Got a call from this number this morning. The lady had a very heavy accent. No clue where she is from. She was asking me about my immigration status or whatever. Barely understood her because of the accent. However, since she knew that my school helped me to send all immigration documents ( She even did not know F1 means student visa), she tried to hang up as soon as possible.
ACCIDENTALY CHOSE A COMPANY ...www.us-immigration.com
found out they were not the official us immigration after I had filled out a form ( to get me started)....they have tried to call me from this 415 number 5X plus emailed me...with a 1-866 379-7218 ext 369...they want my credit card number....BIG SCAM!!!!!