public function credentials_updated() {

		$client = $this->get_client();
		$account_credentials = $client['account_sid'] . ':' . $client['auth_token'];
		$new_credentials_hash = base64_encode( $account_credentials );		
		$old_credentials_hash = get_option( 'uap_automator_twilio_api_credentials_hash', time() );

		if ( $new_credentials_hash !== $old_credentials_hash ) {
			update_option( 'uap_automator_twilio_api_credentials_hash', $new_credentials_hash );
			return true;
		}

		return false;
	}