If you have questions or concerns about your application or the case status results listed above, or if you have not received a decision or advice from USCIS within the projected processing time frame*, please contact the National Customer Service Center. “
申請的是結婚綠卡,遞交的補充材料是稅和工資單等,還沒有麵試呢,怎麽就會“you will receive a written decision on the case"? "preliminary processing"是什麽?這封信是凶是吉?“however"一字看得我不知道是什麽滋味。另外,USCIS case status online上查不到national processing center I-485的processing date.