Business Visa - B1

I would like to share my US visa stamping experience with everyone.
My visa class is H1 extension, and I came here for extension in one month leave.
First I could not able to get appointment in Chennai embassy within leave period, so my biometrics done in Chennai OFC and interview done in Delhi embassy on 18. Visa is approved easily and there are no major questions. While booking appointment my pickup location is Chennai OFC. Also I registered for premium courier service in New Delhi to courier to my home directly (I paid Rs.300 for that).
My visa status is changed to “Origination scan” on 19. I thought everything’s ok but problem comes after that. I didn’t get my passport till Oct-31. Till this date I called VFS customer support daily and they said same response “your passport is done with US consulate and ready to couriered”.
I email’s [email protected] and opened 5 cases and all are closed with same response. I have no clue why my passport is not couriered. I even started worried my passport is lost. My return ticket is cancelled and I have no answer to my managers when I can return.
But on 31oct I got a call from Delhi OFC and they asked me to come and pickup from Delhi OFC. I could not believe that, I fought with them for 15 min to convince them that I gave Chennai OFC for pickup. Finally they said they will send the passport to Chennai OFC office. I hope I will get passport tomorrow in Chennai OFC. I asked for why is the delay and they don’t have any answer.
I would request every one not to believe in IVR, Online tracking, VFS customer care and other automated email responses. All having same response and currently there is no process to track passport exactly. So once your status changed to “Origination scan”, please contact OFC office directly and gets the details from them. Don’t go for any other approach.