Interrogation of an electronic device by a first terminal is facilitated, to obtain an account number associated with the electronic device. The electronic device is configured according to a payment specification. The first terminal has a first terminal payment module configured according to the payment specification and a first terminal electronic merchandise module configured according to the electronic merchandise infrastructure and coupled to the first terminal payment module to permit transfer of non-payment e-merchandise related information from the first terminal electronic merchandise module to the first terminal payment module. The interrogation of the electronic device is performed by the first terminal payment module. Generation of non-payment e-merchandise related information by the first terminal electronic merchandise module is facilitated. Transfer of the non-payment e-merchandise related information from the first terminal electronic merchandise module to the electronic device via the first terminal payment module, within a transaction between the electronic device and the first terminal payment module that is conducted in accordance with the payment specification, is also facilitated. The non-payment e-merchandise related information is stored on the electronic device in accordance with the payment specification. The electronic device and the first terminal independently calculate a summary data item. The first terminal calculates a first message authentication code based on the non-payment e-merchandise related information and a terminal-calculated value of the summary data item. The non-payment e-merchandise related information is stored on the electronic device together with an electronic device-calculated value of the summary data item and the first message authentication code.