Typically, orders are opened and paid within the same user session, but occasionally, a member needs to return at a later date to pay a balance. In either case, the payment is noted in Orders and Transactions > Payments & Adjustments and within the order details of the original order.
Go to Orders and Transactions > Payments & Adjustments.
Use the search to locate the payment using either the name of the purchase or the Order #.
To review all payment details for that order, click the Order # (View) link to the right of the payment record.