Which of the following is NOT an example of a postage payment method?

Cash on Delivery (COD) is a service that allows a recipient to pay for a package upon delivery, but it is not a method of postage payment in itself. Instead, it is a billing method that involves the use of postage that has already been paid or arranged by the sender. In contrast, Village Post Offices, Stamps by Phone, and Approved Shippers all represent direct methods by which postage can be purchased or processed. Each of these options provides a way for customers to pay postage for their mail or packages, whereas COD does not fit the criteria for directly purchasing postage itself. Thus, identifying COD as not fitting the postage payment method category highlights a distinction between payment for services and payment specifically for postage.