case换地址是什么意思？

今天收到一个通知，不知道什么意思。请大家帮忙，先谢了!

Current Status: Case Transfered to Another Office for Processing

On June 23, 2009, we transferred this case I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS to our NATIONAL BENEFITS CENTER location for processing and sent you a notice explaining this action. Please follow the instructions provided on the notice.

所有跟帖： 

• 回复：case换地址是什么意思？ -小胖6789- ♂ (24 bytes) () 06/24/2009 postreply 08:02:27

• expect local interview... -themonkey- ♂ (0 bytes) () 06/24/2009 postreply 08:49:45