I probably should have said, if anyone wanted to know for reference, it was a spousal application, i am from england, hes american but we have been married for 7 years and living in america. I was just so excited I got the email. I am glad it said we were approved as well and not just something vague like steph's said. I would have been having a panic attack all weekend that someone was wrong but it actually says
Your application has been approved and the visa has been issued.
I guess each center has their own way of doing things (this was chicago)