I would expect them to donate the money directly to the Community Trust and not try to "dream up" new projects. They could make a restricted donation but I do not see that intention in their survey.
I'd recommend you contact crowdfunder to have it refunded, then if they wont goto your card and finally if that doesn't work small claims court. Based on you buying a product from a limited company (crowdfunder.co.uk) it'll be an easy win. Its sad you have to go down this route but the "Supporters Club" have gone rouge.