public function action_callback( $order_id = null, $type = null ) {

		// Make sure order_id and type have been provided.
		if ( ! $order_id || ! $type ) {
			return false;
		}

		// These checks are basically the same we do in LLMS_Controller_Orders::recurring_charge().

		// Recurring payments disabled as a site feature when in staging mode.
		if ( ! LLMS_Site::get_feature( 'recurring_payments' ) ) {
			return false;
		}

		$order = llms_get_post( $order_id );

		// Make sure the order still exists.
		if ( ! $order || ! is_a( $order, 'LLMS_Order' ) ) {
			return false;
		}

		$user_id = $order->get( 'user_id' );

		// Check the user still exists.
		if ( ! get_user_by( 'id', $user_id ) ) {
			return false;
		}

		// Ensure Gateway is still available and supports recurring payments.
		$gateway = $order->get_gateway();
		if ( is_wp_error( $gateway ) || ! $gateway->supports( 'recurring_payments' ) ) {
			return false;
		}

		$this->user_id = $user_id;
		$this->post_id = $order->get( 'id' );

		$this->send( false, array( $type ) );

		return true;

	}