-OnoffPay mobile payment supports NFC payment function using deferred payment transportation card.- Receipt can be issued via SMS.- You can inquire and cancel all payment details, and you can also check the settlement details.* NFC tag service does not work properly in Samsung Galaxy S4 or later models (SHV-E330S).* Please contact according to the position of the NFC antenna on the back of each manufacturers terminal.** On/Off Pay mobile payment cannot be used on rooted devices.** The app permissions required by OnOffPay mobile payment are used as follows.1. Storage - Used to store receipt signature data.2. SMS - Used to link receipt issuance.- On/Off Pay Customer Center: 1600-8952For inquiries about On/Off Pay mobile payment, please contact the customer center.