Here's a slightly better photo of one of the wasps I saw coming from the nest on the ground today.
No interactions present.
Oh well at least I know it'd social wasp and that was really interesting about the larva removal. Thanks. I've been using my phone to take pics so maybe I need a camera for xmas.
Lat/Lng: 51.5845, -0.1313
OS grid ref: TQ295889