Thanks a lot PrinceofJungle.
I am not still clear about the address to where I should send.
I have two addresses confusing me below.
In I765 Form, it suggests I send to address (1) below because
my EAD renewal is based on C9. In form I765 says
"If your response to question 16 is (c)(9), file your application at the same local INS office or Service Center where you submitted your adjustment of status application" which is address (1).
But in
http://uscis.gov/graphics/fieldoffices/nebraska/aboutus.htm
it suggests address (2).
I wonder it does not matter address (1)and (2) or I should send to correct address either (1) or (2) which I am confusing.
(1) USCIS Services Center
P.O. Box 87485 Linclon, NE 68501-7485
(2) USCIS Services Center
P.O. Box 87765 Linclon, NE 68501-7765
Thank you.