Visitor Visa - B2

Here is my situation:

1. Received B2 approaval 4 days before it expires on Sept 1st.

2. On Sept 12 filled for change from B2 to H4 on S( I was under the impression that there is a grace period of 10 days).


Now uscis is asking me:

A. submit evidence of how i used my visiting time.

B. why I applied for B2 in first place (prior to B2 I had H1b).

C. why I did not maintain valid status from Sept 1 to Sept 12!!

Any advice on how I should respond and what documents I should provide.


Please advice!!


Thanks in advance.


[email protected]




Thanks.