Many of the instructions are too terse, unclear or ambiguous. Poorly written.
The Buyer has to fill-in a lot of information about Charities. This is Not mentioned. It takes a lot of work to do this.
W3 should put in the effort to take the A+ charities from say, Charity Navigator, and populate the choice set, and allow search by Charity type. That Would make this app very useful.
This would be very good to have app, but needs to develop it further.