Abstract: Method of providing automated individual promotional and price information to a customer at the moment of viewing goods of interest in self-service stores. It comprises software application with identification code pre-installed on the customer's smart phone, automatic reading of machine-readable code (for example, QR code) applied on the name and price labels or stickers of commodities located at the store shelves using, e.g., smart phone photo camera. Code information is transmitted via mobile Internet to Data Processing Center and media file is sent back to a customer smart phone with personalized, in dependence on his purchasing history, content and personal discount on selected goods. Method further comprises transmission of selected commodity code and amount of discount granted from Data Processing Center to a store computer controlling check-outs.