Hi hon
Used to live there many moons ago! I'm in Harrow now so the other side of London.
Here are some phone numbers:
Association of Breastfeeding Mothers: 08444 122 949
National Breastfeeding Helpline: 0844 20 209 20
The link below will take you to a site that shows you where your nearest breastfeeding cafe is.
http://www.thebabycafe.co.uk/L/BC_Nearest.php#aGood luck - let me know how you get onxx