I got the size 12. Said to the shop assistant that I'd never asked for a 12 in a shop before! Its much better. Will take a pic later when I'm back from dinner.
They were really nice in the Islington shop. I said that the people on the internet said that they were nice in that branch and that I would report back that they were right!
I also bought some pjs. Now officially bankrupt, although the green dress went back.
I would have never have gone in the shop if I hadn't had bought anything online as it looks too intimidating and you have to ask for the sizes etc. I usually find stuff like that a bit embarrassing! 
@faustina the picture I posted is the same dress interesting. Hers looks much lighter in colour. I hope mine doesn't fade as much. I did tuck the neck in which I think looks ok.
Will have a look on insta to see if I can find it.