your best bet is Infopass.

来源: 于 2008-04-22 20:27:47 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Did you send I-90 by certified mail? Have you ever gotten I-90 receipt notice? So how do you know "两日后查询移民局已收到"?

you can search "I-90" in this forum. also see below,

http://web.wenxuecity.com/BBSView.php?SubID=immigration&MsgID=253461