收到EAD卡，报一下时间节点

02/26: Case Received
03/31: At this time USCIS cannot provide you with information for your case.
04/20: Case Was Approved
04/20: Card Was Ordered To Be Produced
04/27: Card Was Picked Up By The United States Postal Service
04/28: Card Was Delivered To Me By The Post Office

楼主从3月31号开始查不到case的状态，一共持续了快3周。期间给uscis打了无数次电话，基本上都没有起到任何作用。感觉客服能看到的信息跟你在my status是一样的。
有时候客服会另外帮你转接到二级客服，二级客服能看到你在系统中得状态最后一次改变是什么时候，不过也没什么用，还是叫你等。
一起寄材料的小伙伴大多一个月左右就收到卡了，我算是人品比较差的。