A system and method for enabling a user to request and receive product information, participate in voting or polling activities, reprint an article or other publication, request and authorize a purchase of a magazine subscription, music sound clip, or other product, and/or share personal information with other users. The service request and information delivery may provided over a mobile phone. The user dials a series of digits into their phone and enters them into the disclosed system, for example by pressing the send key on a mobile phone. The digits entered by the user include a prefix or routing code, and a data code. The dialed digits are transferred to a call switching system, which determines, based on the prefix code, a processing system to which a message is sent including the originally dialed digits as well as identification of the user or phone that placed the call. The processing system may then determine, based on the identification of the mobile phone that placed the call, a user account. The processing system further determines, based on the data code of the dialed digits, the product information or other service such as entry of a polling response, vote, or product purchase, that is to be provided. The user account information may then be used to determine a delivery technique, such as electronic mail using an electronic mail address associated with the phone that made the call, SMS/MMS/EMS Text messaging, or WAP push, through which the product information associated with the data code may be forwarded to the requesting user.