Method for delivering a product to a register according to a tracked location of a mobile device

A method for providing sales support includes issuing a customer a mobile device and a corresponding identification, wherein the mobile device issues an electronic service request including a customer purchase order for a product having a product identifier, receiving the electronic service request including the customer purchase order, tracking a location of the mobile device issued to the customer, and delivering the product to a checkout register according to the location to which the mobile device is tracked.