Hi Montreal86,
try not to worry, I keep telling that to myself. Its hard when you see that they can call you earlier too, but they said 4-6 weeks.
LadyC, and Joy88, since your status has changed it must mean that they will contact you in couple of days, have your phone handy,
Akoti19 so sorry to hear you didn't make it. I thought they are picky but not that much. Try to cover your scar somehow next time, and if you love the job keep trying. Don't give up.