• A passport registered number will be cancelled once customer leaves Korea, the remaining credit cannot be refunded. • The plan comes with unlimited data&calling&text (After 300MB of the fastest speed data, it goes to unlimited 3Mbps). • The calling is only unlimited with 010/070/080 /household numbers.The period of use will be shortened with commercial calls. • The extra charge will be deducted from the remaining credits and shorten the period of the plan. • The plan will be cancelled after it expires without an extension. • 1 month subscription comes with 30 days service. • Delivery will be arranged at 5 pm Monday-Friday (KST). It takes 1-2 working days (3-4 days to Jeju Island). • Delivery may be delayed depends on the circumstances. • SIM will be shipped after being activated with domestic delivery.(eg. Reservation on Oct 5th = Activation on Oct 4th). • Passport applied mobile service can only be activated after customer passes the Korean immigration. • Service is only available in Korea. • The number will be cancelled after the customer departs from Korea due to the expiration of visa. • The same passport can only activate 1 SIM card once in 94 days. Customers shall bear the risk of failed activation. • For airport pickup, SIM will be activated after the collection is confirmed during activation hour (10:00 - 19:00 Mon to Sat). • Airport pickup hours: 07:00-21:00 Mon-Sun. / Customer service hours: 10:00-19:00 Mon-Sat. • Please bring the passport and order information with you while choosing pickup at the airport or Chingu's offline shops. Cancellation policy Based on Korean Standard Time (GMT +9:00) Order cancellation 3 days before the SIM collection date: 100% refund. 1-2 days before the SIM collection date: Non-refundable. Please contact Chungu Mobile customer service at least 3 days before the SIM collection date if you have any changes to your schedule.