现在该怎么办？父母5月中旬来美，7月中旬我替他们申请绿卡。
9月底收到了工卡。AP一直没有收到，网上的状态是“on sep 21, 2015, we approved your form I131.....We will mail your approval notice. ”
但是到今天都没有更新，也没有寄出AP。请问我现在要怎么办？
-Probably the card they got is "EAD/AP combo card". Check the EAD card to see whether there is "Serves as I-512 Advance Parole" on the card. If yes, then this is EAD/AP combo card which can be used to travel and work. (i.e. it has the functions of both EAD and advance parole).
11月收到了两封信，说父母的绿卡可能不需要面试，但是时间有可能要延迟，让半年没有消息再打电话。这种情况他们的绿卡还要等多久？
