Thanks for the responses folks - MP had been emailed, and got a draft to the BT CEO sat in my outbox.
In terms of moving house - that would surely be daft. We spent a year looking for a house at the right price in the right location and are very happy with it. Just not with the broadband connection. And selling up/moving on is a right bellyache, so that's not going to happen!!
I was aware of the potential issues with slow internet connections in new builds so did raise this with the developer, and was obviously pointed to the fibre at the end of the road, no issues expected, you should have a nice fast connection. Obviously the sales lady put in the "obviously we don't know yet as the house is still being built... Not legally binding etc etc"
I just don't want to get forgotten - it seems we're on the bottom of everybody's list at the moment, and unless someone kicks up a stink it'll be easier for everybody to forget about this little pocket of a couple of dozen houses and leave us in the 1990s!