The present invention provides apparatus, systems and methods that apply to a single particular billing method selected by each of a plurality of users, in response to each particular user's request, a set of billing method rules for each carrier of a plurality of carriers and determines whether or not each carrier of the plurality of carriers supports the shipper's specified preferred billing method, and if so, any special pricing considerations for each particular Carrier. Each user of the present invention accesses the present invention over a global communications network using a client computer device, each user client computer device having an individual electronic connection to the global communications network.