Good luck with all of your complaining. That won’t get you anywhere I am afraid. You are much better off spending time finding partner award inventory to India and then DL to that gateway. I am confused since this is a layover issue in LHR and DL has a lot of flights to/from LHR … was that discussed? VS to LHR then DL to the US? Should be straightforward unless I am missing something.

Guess then there is an o/n in the US instead of LHR. No way to connect BOM with BNA w/o an o/n/ keeping the VS flight.