strange!!! Xiaobaitu and other people, please help!!!

I got my GC in May. But yesterday I got a mail from local immigration office. It's a Fingerprint Notification. It said that I need do fingerprint for my I485 approvement.
What am I going to do? I want to ignore the letter, Because it's obviously their mistake. But I am a little worried.
Xiaobaitu, please help!!! Other people who had the same experience, please help me!!!
Thank you very much.

所有跟帖： 

• Pick up the phone and call your -Saab95- ♂ (30 bytes) () 10/05/2006 postreply 13:00:18

• Usually phone call doesn't work,you need to go to their office -xiaobaitu- ♀ (20 bytes) () 10/05/2006 postreply 15:00:25

• good suggestion, you should go there on time and ask them. -SFbayareaguy- ♂ (0 bytes) () 10/05/2006 postreply 16:40:59

• thanks a lot! but... -thanksalot99999- ♀ (148 bytes) () 10/05/2006 postreply 17:07:58