How do I update my payment information? To update your payment information, simply: Log in to your account. Head to your payment page. Enter your new payment information. Be sure to click the Save Changes button when you're done! Related articles Why do you need my payment information before sending my Dia Box? How can I delete or cancel my subscription? How can I cancel a scheduled Dia Box? How do I pay for Dia&Co with PayPal? What do I do if my email address isn't found?