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Contact

b-mobile Helpdesk for VISITOR SIM (For inquiry about VISITOR SIM only)

b-mobile Helpdesk will close May 1st and May 3rd.

TelTelephone
Business hours 13:00 - 16:00 (English)
  03-6721-5032 (calling from domestic network)
  81-3-6721-5032 (calling from overseas network)
Business hours 11:00 - 18:00 (Japanese only)
  03-5776-1700 (calling from domestic network)
MailInquiry Form
We will reply within 3 business days.
However, we may not be able to send you a quick response, or even any response in some cases.
We can not answer any inquiries which is written other than English.