Why isn't delivery time displayed during checkout on Prabji.com?

[j6mandeep]

I have started my shopify store Prabji.com: I am trying to get Delivery time being displayed during checkout: have tried following "Troubleshooting" module also .

Currently using three Apps : all for shipping products to 1 zone.  Have tried making 1 flat rate for all 3 Apps separately as well as keeping only one App rates common for all .

Pl help , as tried these combination multiple time.

Regards

Mandeep Singh