I am trying use Twilio api to send SMS to my customers. When i use trial account, i'm using this code:
<?php
require('Services/Twilio.php');
$account_sid = '{my_sid}';
$auth_token = '{my_token}';
$client = new Services_Twilio($account_sid, $auth_token);
$callback=$client->account->messages->create(array(
'To' => "+84974366xxx",
'From' => "+14845280xxx",
'Body' => "hello world",
));
print_r($callback);
?>
The sms i received had "Send from twilio trial account" before "hello world". Now i upgraded my account and test this code again. It's still respone successfully, but my phone number isn't receive SMS. Now how can i check status of $callback and resend sms?