<https://www.24-7prayer.com/product/event-donation/#product>
<http://schema.org/description>
"If you're attending The Gathering online or in person we'd love you to consider adding a donation. Your donation will go towards the cost of running the event, enabling us to stream online and towards allowing those less able to attend to be there.\nIf you add an event donation, you will receive two emails:\n1. A ticket with a cost as £0 - please ignore this email.\n2. An order confirmation with the correct amount you have paid"
<https://www.24-7prayer.com/product/event-donation/>