Hand on heart, I don't know anything about this process other than what I have learnt from you.
5.8% of children with SEND attend private school.
I'm simply pointing out that if there is crowdfunding on behalf of those children to be done, it could be put to better use than private school fees.
But I think a lot of people donating to the campaign are doing it for their own financial self-interest rather than genuine concern for the 1.7million children (or even the 100,000) children with SEND.