Fox in a Box is a live event akin to going to a concert and you have reserved a very particular time which has prevented someone else from taking that time. If you can find someone to fill in your time for you, that is your best bet.
If you are unable to find someone to take your time, you can notify us immediately and we can open up the reservation so that someone else can book it. If the spot does get filled, then we can issue you a voucher to use at a later time. If no one books your spot, then, unfortunately, you will not be refunded or receive a voucher.
Here are some other links that may help: