没说是什么，请问可能是要求工作证明吗？为什么不直接说REF? 我07年大潮递的485.
信是这样的：
Current Status: Document mailed to applicant.
On July 2, 2009 we mailed the document to the address we have on file. You should receive the new document within 30 days. If you do not, or if you move before you get it, call customer service.