Payment & Registration Instructions At the time of registration, families will be prompted to create a free Active.com account to access our secure payment system. To reserve your child’s birthday party, you may choose to: Pay a deposit at registration to secure your date and time, and Pay the remaining balance on the day of the birthday party, or Pay the full balance, if preferred. All payments are processed securely through Active.com. Once the deposit or full payment is completed, your party booking will be officially confirmed.