使用Google Geocoding API从地址获取纬度和经度错误消息:“您已经超过了此API的每日请求配额.”

这是我的代码

$url = "https://maps.google.com/maps/api/geocode/json?address=$address&sensor=false";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXYPORT, 3128);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$response = curl_exec($ch);
curl_close($ch);
$response_a = json_decode($response);

我怎样才能增加配额。我有将近30k以上的数据