I got a letter from Buffalo asking me my working or study experience during a period which I did not specify on the application form. They need it for background checking. However, during that period, I just applied for visa and stayed at home.
Anybody knows whether I should get a certificate from China stating I was unemployed or just write a letter by myself to Buffalo saying that I was unemployed at that time?
I think those people have job can get the landing paper easily and faster. I know a guy whose application procedure only took half a year when got the landing paper.