We do not accept any returns or exchanges due to customer circumstances.

However, defective SIM card can be returned or exchanged (※within 7 days upon receiving).

Please contact customer center for cell phone line recovery on the day the contract is terminated.

※The contract is subject to compulsory termination after 90 days since the day remaining balance became 0.

(1) How to make international phone calls:

005 + country code + receiver's phone number + [call]

(2) How to send international text messages:

00345 + country code + receiver's phone number + [send]

If you follow procedures above, you can call or text with the existing balance without additionally charging or buying international calling cards.

Availability of international roaming (automatic roaming) depends on (1) a type of smartphone you use and (2) city or country of destination.
Prepaid plans do not offer this service.

No, micropayment is not offered to prepaid SIM card.

Yes, it is possible. However, you may not be able to switch to another mobile phone operator if there is any unpaid charge.

First, you need to maintain the current prepaid payment plan for 3 months.

Additional application needs to be submitted in order to switch to postpaid payment plan.

※Please bring your alien registration card to our office.

Please bring the following documents:

- Contractor: passport

- Underage (under 19): passport, consent from guardian/legal representative

- Agent: passport (contractor), identification (agent), seal (or stamp), seal certificate, and power of attorney

We provide a unit-month contract period. You can get a discount worth 1-month payment if you maintain the contract for 3 months.

You can start using the identity verification service after submitting an alien registration card as an identification.