I had submitted mine and my wife's passport visa dropbox for B2 US Visa extension. While I see one of the passports have been processed the other one no action is shown. why

I had submitted mine and my wife’s passport visa dropbox for B2 US Visa extension. While I see one of the passports have been processed the other one no action is shown. why

I would contact VFS for the status.

I checked up with status check in CEAC. The status is shown as:
Your case is open & ready for intervirew etc…If no interview was required check back the status after 2 days**
I presume my application is stil to be taken up. Any suggestions pl?