public function addAlternativePhone($areaCode, $number, $countryCode = 55)
    {
        $alternativePhone = new stdClass();
        $alternativePhone->countryCode = $countryCode;
        $alternativePhone->areaCode = $areaCode;
        $alternativePhone->number = $number;

        $this->data->person->alternativePhones[] = $alternativePhone;

        return $this;
    }