Complaints and enquiries
Contact us about complaints or questions on our services.
This English version is for reference. The Japanese version prevails.
Our desk
Rainbow Network Limited. Phone: +81-3-4560-4490 (weekdays 10:00–18:00 JST), or use our contact form.
Public services
If this does not resolve it, you can also consult a public consumer center (Consumer Hotline 188).
Established November 2, 2026
