I had my H1 extension petition submitted to INS CA thru my employer-attorney on Mar 3rd. I was told that, my attorney went in person to submit this application.
I got my receipt notice last week with
RD March 3rd
ND March 5th
But, I sent my wife's EAD extension on Jan 23rd and havent got any reply from INS CA and they havent encashed my check yet.
May be they are treating the applications differently, if it comes thru attorney.