Why I got the 2th fingerprint notice in the same month even befo lily082009-03-13 20:24:26

Really confused about that.

1-485 and I797 received date is 2/20/09
1st fingerprint notice (code3) received on end of Feb and the arranged date
for fingerprint is 3/17/09;
yesterday received another fingerprint notice(still code3)and notice us to
go for fingerprint on 3/26?

Could anyone explain that for us? thanks!

Take both notices with you at your first appointment - 回复：Why I

回复：Why I got the 2th fingerprint notice in the same month even b