最近看到很多德洲中心的绿卡得到批准,有谁最近在Nebraska center获得绿卡批准的?有谁知道background check cleared后多久会在Nebraska center获得绿卡批准?(EB3,PD current in 06/2007,concurrent filed I140/I485 march 2004, I140 approved in 2005,FP multiple times and all current now. checked with lawyer said background check cleared). 打哪个电话可以和移民局的人谈?(I-800 电话没用). 谢谢.