HI.. I have a question. I'm US Citizen and I do petition for my mother, father and 16 years old brother.I do 1 petition for 3 people, because they are together.My mom is main face in this case. So, from immigration cervice I resived envelope with fee bill of $380 which I have to pay to NVC. But it is just for 1 person. I send petition for 3 people. If somebody can say me what I have to do??? Thank you ....