public function token($paymentType, array $additional = [])
    {
        $this->integrityCheck();

        if ($paymentType !== 'CC') {
            die("The payment type '$paymentType' is not allowed! Currently allowed is only: 'CC'");
        }

        $tokenResult = $this->mpay24Sdk->createTokenPayment($paymentType, $additional);

        $this->recordedLastMessageExchange('CreatePaymentToken');

        return $tokenResult;
    }