public function saveCard(
        $customerExtId,
        $cardHolder,
        $cardPan,
        $cardExpiryYear,
        $cardExpiryMonth,
        $cardCVV,
        $validate = false,
        $service = '',
        $additional = ''
    ) {
        $request = $this
            ->apiRequestFactory
            ->createSaveCardRequest($customerExtId,
                $cardHolder,
                $cardPan,
                $cardExpiryYear,
                $cardExpiryMonth,
                $cardCVV,
                $validate,
                $service,
                $additional
            );

        return $this->send($request);
    }