A network-based service may generate notifications regarding items of interest to a user. A contact selection service may receive the notifications and generate a user interface for transmission of the notification to the user. The generated user interface may include a unique identifier and may further enable the user to submit user contact information to request contact with a service agent. The contact selection service may further pre-authorize contacts between users and customer service agents CSA. The unique identifier, and optionally the submitted user contact information, may be employed by the contact selection service to selectively determine which customer contact requests received by the contact selection service are pre-authorized for contact with a CSA and enables such contacts between customers and CSAs to proceed.