Ogone\AbstractPaymentRequest::setOwnercty PHP Method

    public function setOwnercty($ownercty)
    {
        if (!preg_match('/^[A-Z]{2}$/', strtoupper($ownercty))) {
            throw new InvalidArgumentException("Illegal country code");
        }
        $this->parameters['ownercty'] = strtoupper($ownercty);
    }