Abstract: A method of ordering an item using a user mobile device and a system for processing such request. A user is provided with an item information identifying the item, the item information comprising an item description and an item identifier. The user requests to order the item by sending a short-text-message from the user mobile device to a server system identified by a server system identifier, the short-text-message comprising the item identifier, whereby sending the short-text-message is not a part of on-line dialogue with the server system through an Internet service. The server system receives and processes the short-text-message, generating an order to purchase the item based on the information comprised in the short-text-message and the user information previously stored in a customer database.