Method for purchasing a service offered via a data network in return for a payment transaction lets a user apply an end user system to order a service from a service provider and link the whole process via a secure user-defined identifier.

摘要

A user (1) applies an end user system (10) to order a service from a service provider (40), who activates a transaction center (30) that enters into a data-exchange process with a device (2) for transacting payment (DTP), in order to request the amount corresponding to the payment, which is preset to match the service ordered. A secure user-defined identifier linked to the DTP links together an ordering process and the DTP data exchange. Independent claims are also included for a transaction center with a transaction module for carrying out data exchange with an end user system as well as a router module and a compensating module, for a method for operating the transaction center and for a system for operating the method of the present invention.