Support Center

Don’t worry if you don’t speak Japanese, please feel free to reach out!

Our customer support is available in 13 languages, including Japanese, English, Chinese, Korean, Indonesian, Vietnamese, Nepali,
Mongolian, Tagalog, Burmese, Cantonese, Hindi, and Portuguese.
Please rest assured that you can comfortably consult with us even if you do not speak Japanese.

How to Contact Us

Inquiry via Chat

You can use the button
at the bottom right of the screen
to send your inquiry
SNS

Available SNS Platforms：
Facebook,WeChat,KakaoTalk
Business hours: 10:00–18:30 (Japan time)
*except New Year Holidays
Inquiry via phone

03-5155-4673Business hours: 10:00〜18:30 (Japan time)
*except New Year Holidays
Inquiry via mail

info@gtn-mobile.comBusiness hours: 10:00〜18:30 (Japan time)
*except New Year Holidays

Available SNS Platforms

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ID:gtnmobile
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