分享一个STEM OPT timeLine （EAD returned as undeliverable）

比价有用的指导方案：
https://sites.google.com/site/achaleshwarsahai/home/ead-ordeal

TimeLine
05/02/2017
We received your Form I-765, Application for Employment Authorization.
07/26/2017
We mailed your new card to the address you gave us.
08/08/2017
The Post Office returned your new card to us as undeliverable.
10/16/2017
Seek for help from local congressman
10/27/2017
. 1point 3 acresGot EAD card

希望大家好运

为什么会undeliverable啊。。地址填错了？