public function setCreditCard(
        $type,
        $number,
        $expireMonth,
        $expireYear,
        $cvv,
        $firstname,
        $lastname
    ) {
        $this->creditCard = new CreditCard();

        $this->creditCard->setType($type)
            ->setNumber($number)
            ->setExpireMonth($expireMonth)
            ->setExpireYear($expireYear)
            ->setCvv2($cvv)
            ->setFirstName($firstname)
            ->setLastName($lastname);

        return $this;
    }