[10% OFF] Hong Kong eSIM

• Validity Period: Usable within 90 days from the purchase date 
• Scan the QR code on the voucher sent via email
• Register the eSIM according to the device's operating system registration method
• You can find detailed eSIM installation instructions on our official Installation Guide.

​​​​​Operating Hours:
Messenger Customer Center
24 hours, year-round

Phone Customer Center
09:00 AM ~ 18:00 PM (Lunch break 12:00 PM ~ 13:00 PM)
Closed on weekends and public holidays

Contact Information: 
Domestic: 1661-0158
International (Local issue support only): 070-5097-6417
KakaoTalk Plus Friend: @USIMSA

- Refunds are available only within 7 days from the purchase date.
(However, refunds for the following month may be difficult to process, and refunds are not possible if the product has been used or already registered on the device.)
- Due to the nature of products used locally overseas, refunds requested due to reasons such as connection failure, unavailability, or eSIM malfunction may be due to issues with the device being used, unfamiliarity with settings, or temporary communication failures, rather than product issues. Therefore, refunds will only be processed upon approval after consultation with customer service (phone, email, etc.) using local Wi-Fi etc.
- Refunds may not be processed for requests made after returning home without prior confirmation.
- eSIM products can only be registered and used on the device they were initially registered on.
- Once registered, it cannot be re-registered on another device.

Cancellations/refunds are applied only to requests received during business hours (weekdays 09:00-18:00).