If you book via internet, you can pay at convenience stores within Japan. (some areas and outside of Japan are not available).
You need to complete the payment within twenty-four hours after the online booking. Otherwise your booking will be automatically cancelled. The maximum amount of money that you can pay at one time is 300,000 JPY.

When you select a convenience store payment in the payment page, you will receive a “Customer Number” or “Confirmation number” that is different from the “reservation number” on your ticket. Please write the number down, or forward to your e-mail account by typing your e-mail address in order to complete your payment.

If you do convenience store payment, please ask for your receipt at the convenient store. Peach cannot provide you with a receipt.