If you need to update your payment method for all pending preorders:

1. Log into your account and click the Edit Payment Details link on the left navigation under My Account.
2. Update your order payment details and click Submit.

If you would like to update your payment method on a single order:

1. Log into your account and locate the preorder in question from the My Orders section.
2. After opening the preorder, click the link that reads "Select All" or check the box to the left of the product that needs to be updated.
3. Click the link that reads Edit Payment Details to edit or change the payment method. Update your order payment details and click Submit. If the new payment details should be used on all outstanding preorders, check the box that reads Update order payment details for all orders before submitting.