Hi noelphobic and Michael
I don't know about the charity, but I do know that Admiral nurses are genuine - they exist mainly in the south of England and in the Manchester area, but hopefully they will become more widespread as time goes on. See this link:
I didn't post the link with the idea of raising money for the charity. I thought that they might be of help to someone! I do agree that you can't support all the charities, you have to pick something close to your heart I guess. I give money to diabetes charities because my 17 year old son has diabetes and if he didn't have it I wouldn't be donating to them!