Hi I came to US with green card and I have received welcome notice three times but still didn’t get my green card I keep on calling national service center and I have been told that the card had been returned back to them and have been asked for address confermation i did so and the person on phone told me that I will get it within two months but I didn’t I called national visa center again and I have been told they have sent it and I need to fill I 90b form I did so and I have been notified with letter I have to file I 90 form as lost stolen or damaged including $260 is that the way if anyone who have the same experience. please