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October Mobile App Simple Menu ＞ Self-opening With just one SIM card, you can activate your phone at any time you want without having to wait. ＞ Usage inquiry You can check data usage, voice usage, and text usage through the Seowol Mobile App. ＞ Check application details You can check the processing details of applications/receptions such as application for additional service change, rate plan change, SIM card change, number change, device change, call history inquiry, and 1:1 inquiry. ＞Event You can check and participate in various events and benefits provided by Seowol Mobile. ＞ Rate plan You can check out Seowol Mobile’s various rate plans and promotional plans. ＞ Reviews You can check vivid reviews from customers who actually used Seowol Mobile. ＞ 1:1 inquiry If you have any inconveniences in using the service, please leave a 1:1 inquiry and we will provide friendly answers and consultation. ＞ You can change rate plans, change numbers, change SIM cards, change automatic payments, apply for additional service changes, change devices, cancel services, and request and change call history inquiries through My Page on the Siwol Mobile App. Customer Center: General Customers 1666-4502 / Siwol Mobile Customers 114 October Mobile URL Website: https://www.siwolmobile.com YouTube: https://www.youtube.com/@siwolmobile Blog: https://blog.naver.com/58qjijwjwf Instagram: https://www.instagram.com/siwolmobile