I applied EAD for my wife. After NSC asked further documents, it got approved from PO Box 82521, not from the applied box 87765. Then we found NSC made mistake on expire date. The card should expire on 01/03/07, but they put 01/03/06 by mistake. After calling 1-800 number, they asked me to fill a replacement I-765 form and mail back the error card to where it was sent out (P. O. Box 82521). I am worry about it will delay in the replacement. As I ckecked the NSC website, they said mailbox 82521 is special for response for further documents. Does any friend have experience in changing error card? How long will it take to get new card? Many thanks for your kind input!