How does it work? You are in a shop, restaurant or at a festival and you want to pay with the Getsby Mastercard® Gift Card. Then use the payment device at the checkout and swipe your Getsby Mastercard Gift Card through the device. Is your purchase more expensive than the balance on your Getsby Mastercard Gift Card? Kindly ask if you can pay in two installments. Don't the people at the checkout know Getsby yet? Then tell them it is a Prepaid Mastercard.