Name was Updated status what does it mean

My H1B Extension was approved on march 24 online after four days they change the status to:-

Name Was Updated
On March 29, 2016, we updated your name for your Form I-129, Petition for a Nonimmigrant Worker, Receipt Number EAC15201XXXX. If you move, go to to give us your new mailing address.

I still haven’t received my original i797 or i94 from USCIS.

My employer called USCIS and they read the same message as their website says and customer rep says I dont have any update other than this.
Does anyone else has same status? If yes, how many days this status has been there?
Does anyone had the same status who got the approval notice mailed later? If yes then how many days it took to get the original I797 mailed?

Can someone please help me here?

In the past people have seen this update, but it doesn’t reflect anything fruitful. It may be something in their system.

As it has been 30 days since it was approved, your employer should have received 797 approval document by now. If not, they should follow-up w/ USCIS.