public function getOrderReferenceDetails()
    {
        $getOrderReferenceDetailsRequest 
            = new OffAmazonPaymentsService_Model_GetOrderReferenceDetailsRequest();
        $getOrderReferenceDetailsRequest->setSellerId($this->_sellerId);
        $getOrderReferenceDetailsRequest->setAmazonOrderReferenceId(
            $this->_amazonOrderReferenceId
        );
        
        return $this->_service->getOrderReferenceDetails(
            $getOrderReferenceDetailsRequest
        );
    }