SMS never arrive from PHP API

Hello, I tested the SNS service to send SMS to france (my country) using the php api, it worked perfectly until I reach the limit. Then I asked amazon to use the service in production, they switch my account from the sandbox to production, I've been able to send one sms and nor more. When I try now I get a statusCode of 200 with a message ID but the message never arrives.

This is my code:

$SnSclient = new SnsClient([
	'region' => 'eu-west-3',
	'version' => 'latest',
	'credentials' => [
			'key'    => '**********************',
			'secret' => '*************************************',
		],]);
$sms = "Simple test";
$phone = "+33123456789";

try
{
	$result = $SnSclient->publish([ 
								"MessageAttributes" => [
									'AWS.SNS.SMS.SMSType' => [
										'DataType' => 'String',
										'StringValue' => 'Transactional'
									]
								],
								'Message' => $sms,	
								'PhoneNumber' => $phone ]);
								
} 
catch (AwsException $e)
{
	print_r($e);
} 	
print_r($result);

The return is like that:

(
    [data:Aws\Result:private] => Array
        (
            [MessageId] => 9d7489b2-3662-5b52-ad7c-d299afb0fcd4
            [@metadata] => Array
                (
                    [statusCode] => 200
                    [effectiveUri] => https://sns.eu-west-3.amazonaws.com
                    [headers] => Array
                        (
                            [x-amzn-requestid] => 2de95f01-356e-5303-9b85-042aacbc0485
                            [content-type] => text/xml
                            [content-length] => 294
                            [date] => Tue, 21 Jun 2022 10:04:01 GMT
                        )

                    [transferStats] => Array
                        (
                            [http] => Array
                                (
                                    [0] => Array
                                        (
                                        )

                                )

                        )

                )

        )
    [monitoringEvents:Aws\Result:private] => Array
        (
        )
)```

What can I check ?
Thanks