We only accept modification for the address, date and hours if we didn't deliver your order yet. We can't change the date or your delivery the day you've scheduled. Balloons will already be inflated and once inflated its non-refundable. Delivery orders can be canceled at the latest, 48 hours before your event date. If the recipient's address is incorrect and delivery was attempted to the address, there is no refund. Royal Party Balloons is not responsible for deliveries made to incorrect addresses submitted to us by the customer. If such a delivery is made, the customer assumes responsibility for the entire purchase.