Help Desk (For "Prepaid SIM for JAPAN" users)＊Domestic calls only.
Before sending inquiries, please see FAQ.
Business hours: 10:00 - 18:00
Available 7 days a week, including holidays
(Unavailable during new year’s holidays)
＊Available in Japanese, English, Chinese, Korean.
Click here for a list of stores.
Before making an inquiry, please read through the FAQ page. Please be careful not to dial a wrong number.