A central system for receiving captured transaction data from a plurality of remote capture devices over a network, the remote capture devices including a mobile device type and a fixed location device type, the system comprising: a receipt module to receive the captured transaction data; a processing module to process the received captured transaction data; and a storage module to store the processed transaction data such that characteristic data of the mobile device type is associated with the stored transaction data for said processed transaction data originating from a remote capture device of the mobile device type.