So thats what the £30 set up fee is then.
Yep. So they can send their ham fisted muppets around to butcher your house some more.

I wonder where they'd route my second LNB feed? I'm guessing it won't be the same route as the current feed - up the cavity from a flush mounted socket in the lounge, across the loft in conduit and out through the gable end just by the dish.

I already know they "don't do lofts". They told me that at the last house.
Nope, it'd be 8mm diameter cable through a 15mm diameter hole straight through the lounge wall, round 3 sides of the house making sure all the nails go through the damp course 'cos it's easier than hammering them into mortar, then straight (well, not straight) up the side wall to the dish.
Don't think I'll bother.

Kevin