There are many, many ways you can help FoD, but if you feel you are able to offer your support financially, there are a few ways you can do that, as shown below. The image is not clickable - here are the links. Thank you.
https://www.facebook.com/FriendsofDalmain
FoD, Grove Close, Brockley Rise, London, London, SE23 1AS
Registered with the Charity Commission as 1192722