I sent a present to Richard, along with letter and SAE asking if he has recieved them, I sent it on: 11th April 2014, and today I recieved a note on the bottom of my letter thanking me.
address I used was:
Richard Wilson,
c/o Conway Van Gelder Grant Ltd,
3rd Floor,
8-12, Broadwick Street,
London
W1F 8HW