PDs: EB2-NIW and i-485 09/30/2005 VSC--TSC on 03/2006
EB1a 03/19/2010 approved on 06/02/2010
Because my son needs his green card to accept/start his summer internship, so i pushed TSC very hard recently by 3-4 calls to NCSC, 3 letters to TSC and 3-4 emails. In return to my pushing, TSC IO finally reviewed and processed my i-485 on 07/16 and gave me the REF to ask for initial evidence! i have never heard about a REF for initial evidence as all of the initial evidence were submitted with my i-485 otherwhise the USCIS would not accept my i-485. But why do they ask for again? My initial evidence got lost? or they need a update on them? i have not received the REF letter so i do not know what they want.
Has anybody got the similar REF? Can anybody guess what they ask for?
Many thanks for all of your helps!_:'(