Once you have arrived abroad, you be notified via SMS of whether or not you can use the World Data Flat service. This SMS notification is sent free of charge.
Using a 4G Smartphones/Feature phones
Using a 4G Smartphones/Feature phones
Notes
SMS notifications may fail to be delivered based on your model or other circumstances. The number and content of sent SMS notifications vary depending on the country or region in which you use the service, or the service provider to which you are connected.