所以应该给2年的有效期(最近才知道),可是只给了一年所以决定给移民局写信,把老卡寄回,重新填765,
-It is too late to ask USCIS to fix the mistake. She should have sent the EAD back and ask USCIS to issue a new one when she received it last year. If she does it now, USCIS will not fix it for her.
The only thing to do is to file a new EAD application.