Receive a $20 bonus certificate when you book $200 or more in a single order using the ActivityHero iPhone app by January 31, 2020. Limit one offer per household. Not applicable for past purchases or for purchases made through a mobile web browser. The $20 bonus certificate will be sent by email. Bonus certificate is valid between 2/5/2020 - 2/20/2020 and requires a $400 minimum purchase.