


You can check the various charges on the online site "My Y!mobile", where you can change your contract details and check your charges 24 hours a day. There is no charge for use.
If you register through My Y!mobile, we will notify you at the email address you registered once the billing amount has been determined.
We will also notify you of the renewal date of your current rate plan in the month it is due to renew and the following month.
To issue an invoice, you must apply in advance.
This is a service that mails you a breakdown of your monthly usage charges (basic charges, calling charges, optional services, etc.).
Please prepare your contract phone number and PIN (4 digits) for the procedure.
You can use some menus without having to enter your PIN.
What you can do with this number (list of voice guidance)
[Reception hours] 24-hour reception via automated voice response (open all year round)
From Y!mobile phone | 116 |
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From other companies' mobile phones, landlines, etc. | 0120-921-156 |
Please have your contract phone number and My Y!mobile login password ready to complete the procedure.
If you are using this service for the first time, please prepare your contract phone number and PIN (4 digits).