Short answer: no.
This is a fundraising event for the World Scout Jamboree and requires a minimum number of participants to take part to make it viable. Once you book, your space is reserved until either you make the donation, or 21st December 2018. If you have not made the donation by 21st December, we will assume you no longer wish to take part and will cancel your booking.
Once you have made the donation, no refund is possible (as we will have worked on the assumption you are taking part and added that factor into our decision to go ahead or not).
If we decide the event is not viable and therefore cancel, we will refund all donations. We will make the decision and communicate it either way to all registered parties on 21st December 2018.