H1B status change from "Post Decision Activity" to "Decision"

[superwhy24]

Hello All,

#1. My H1B status changes from "Post Decision" to "Decision". But few hours back it was "Decision". It that usual? What it means?
#2. How long it will take to receive the approved petition?

Thanks.

Decision
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On November 15, 2013, this I129 PETITION FOR A NONIMMIGRANT WORKER was approved and we sent you an e-mail notice. Please follow any instructions on the notice. If you move before you receive the notice, call customer service at 1-800-375-5283.

[Reddy4]

Thats normal, your petition has been approved..