I did it last week, and recieved the confirmation email:
"......
Type of service requested:
-- Change of Address
.....
One final note: When you called you or your representative asked that we update your address on your pending case for the purpose of processing. We have updated your address. Your address now appears on your application or petition as the address shown above."
However, in the email confirmation, my address is not shown. I was afraid that I messed this up since I hit the back and forth of my IE several times after I ted the change.
Could somebody let me know if your email confirmation included your current address? Many many thanks!