上上周六收到移民局的RFE的信,然後上周2回複後寄出,上周四delivered,然後上周5移民局網上更新說收到的我信了,今天突然網上更新變成initial review,然後是
On February 25, 2013, the post office returned the notice we last sent you on this case I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS as undeliverable. This may have serious effects on processing this case. Please call 1-800-375-5283 to update your mailing address for this notice to be re-sent.
這是怎麽回事?