USCIS Case Status inquiry says they sent response but I received nothing!

[speedyizzy]

Hello everyone,

Is there anyone here have tried to send an inquiry online via USCIS Case Status Inquiry form?

I sent an inquiry dated 12/12 and my case status history displayed status dated 12/21 such as:
12/21 "your inquiry about a notice that you did not receive,...

[agsdiamond]

I am Irish, and I won the Diversity Lottery in July 2011. My American Embassy interview was the 28th of February 2012. I was told on the day of the interview that I was approved and my visa would be sent to me in a few days. I got my visa (in my passport) sent to me on the 9th of March 2012 and it...