Shortcode to show content in one country

Hi, all my users are from Malaysia. Say if I use the shortcode below to show the page content only for local users:
[geoip_detect2_show_if country=”MY”] TEXT [/geoip_detect2_show_if]
Will there be chances that somebody may be mistakenly excluded even if he is from Malaysia (due to his IP address undetected)?

If the answer is yes, any workaround in this case? My aim is nobody (in Malaysia) should be excluded.
Regards.