private function createPaymillMethod(array $data)
    {
        $paymentMethod = new PaymillMethod();
        $paymentMethod
            ->setApiToken($data['api_token'])
            ->setCreditCardNumber($data['credit_card_1'] . $data['credit_card_2'] . $data['credit_card_3'] . $data['credit_card_4'])
            ->setCreditCardOwner($data['credit_card_owner'])
            ->setCreditCardExpirationMonth($data['credit_card_expiration_month'])
            ->setCreditCardExpirationYear($data['credit_card_expiration_year'])
            ->setCreditCardSecurity($data['credit_card_security']);

        return $paymentMethod;
    }