/**
* @param string $provider
* @return SMSProvider
*/
private static function getSMSProviderInstance($provider)
{
return SMSProvider::factory($provider);
}
/**
* get remaining credit
*
* @return string remaining credit
*/
public function getCreditLeft()
{
$this->checkCredentialManagementRights();
$credential = $this->getSMSAPICredential();
$SMSProvider = SMSProvider::factory($credential[MobileMessaging::PROVIDER_OPTION]);
return $SMSProvider->getCreditLeft($credential[MobileMessaging::API_KEY_OPTION]);
}
