LA doesn't typically email. NYC does. When I was nervous about my student visa in 2004, I rang and the guy told me basically not to call to check status because if there was a problem, etc. they'd ring me. I'm guessing you filed for a spousal visa. Relax. I've never heard of anyone not getting theirs when there weren't some serious issues. If you have a normal application, it'll be fine. My visa took 12 working days to process. Considering Monday was a holiday, they've only had it 4 days.