Why does this happen? – After inserting your Korea SIM card or activating your Korea eSIM, mobile data may work normally while voice calls and text messages do not. – This usually [...]
Overview A top-up is required to use voice call service after completing passport verification. You can top up your call balance at the airport roaming center (recommended) or online. Check your [...]
Overview A call top-up is required when you need additional call minutes. You can also extend your KT Korea eSIM validity period for up to 90 days. Check your phone number on your contract sheet, [...]
Overview Call top-up is required when your free minutes are used or when you need more calls. Check your contract and phone number in the your QR code email, as shown in the image below. Simple [...]
