Support

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If you are using J:COM Mobile, please contact J:COM Support.

For business partnership and PR inquiries, please contact us via email through Business > Business Partnership on our website.

For MIVE Casema retailer information, visit Business > Product Lineup > Mobile Device on our website. For FAQs, please visit Support > FAQs.

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Privacy Policy

Product Inquiries

ALT Japan Support Center

050–5527-9627

Phone Hours: Weekdays 9:00–18:00

(Excluding weekends, public holidays, and year-end/new year holidays)

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