If the passenger paid too little, tell them to click the “Make a new payment” link in the confirmation page. This allows them to make a new payment for the difference that is owed. For example, if the fare was €25, but they only paid €15, ask them to make a new payment for €10. If the customer paid too much, get in touch with us via the “Send Feedback” option in your app, or better still - locate the journey in your job history and send us a note. You can also ask the passenger to get in touch with us either via the link in their payment confirmation page, or by replying to their email receipt.