I made a pledge back along but they said to wait until they asked for the money. So far I haven't heard anything from them.
For straw poll purposes, I'll add that I also hadn't received anything from them until the start of December, when I received a form addressed to me but with someone else's name on it. Duly returned it with my modest pledge and an explanatory note, hopefully the other chap hadn't promised them a million quid or something.