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How to apply for the Family Discount Service online

If you sign up for multiple lines used by your family or other people under a designated rate plan, the basic monthly fee for each line from the second line onwards will be discounted by 550 yen or 1,100 yen per month. (Discounts apply to up to 9 lines.)
This also applies if one person subscribes to multiple lines.

!Those who cannot apply through the online store

You can only apply for a family discount on the online store if the new line you are signing up for is to be a secondary line.

The following people cannot apply through the online store:
Please apply through My Y!mobile after signing up for the line.

  • ・Those changing their device
  • - Those who want to use the line contracted through the online store as their main line
  • *If you are applying for the family discount service with the first line being the main line, please complete the procedure on My Y!mobile after both lines have been activated.

Family discount application conditions

The conditions are that we can verify that you are family (by blood or marriage) or live at the same address.
You will also need family identification documents to complete the procedure.

Online store applicable rate plans

How to apply for Family Discount Service

The documents required will vary depending on the procedure. Please select the applicable item and check in advance.

Who is the primary line account holder for the Family Discount Service?

STEP1

Prepare the necessary documents

check

To apply for a family discount on the online store, you will need to upload the following documents:

Required documents if the main line subscriber lives with family members
STEP2

Apply for a family discount at the online store

オンラインストア

After selecting the Family Discount Service, please enter your application information for the Family Discount Service.

  • *The screen may differ slightly when you apply for a SIM card.
1. Select the family discount service
2. Enter the main line phone number and relationship to the subscriber
3. Select and upload your identity verification documents
4. Upload the Family Discount Service Agreement
5. Choose whether or not you live with the contract holder
STEP1

Prepare the necessary documents

To apply for a family discount on the online store, you will need to upload the following documents:

Required documents if the main line subscriber is a family member living separately
STEP2

Apply for a family discount at the online store

オンラインストア

After selecting the Family Discount Service, please enter your application information for the Family Discount Service.

  • *The screen may differ slightly when you apply for a SIM card.
1. Select the family discount service
2. Enter the main line phone number and relationship to the subscriber
3. Select and upload your identity verification documents
4. Upload the Family Discount Service Agreement
5. Choose whether or not you live with the contract holder
STEP1

Prepare the necessary documents

準備

To apply for a family discount on the online store, you will need to upload the following documents:

When applying for a second or subsequent line under the same name as the main line
確認書類
  • ・Identification documents
    *Not required if transferring from SoftBank
STEP2

Apply for a family discount at the online store

オンラインストア

After selecting the Family Discount Service, please enter your application information for the Family Discount Service.

  • *The screen may differ slightly when you apply for a SIM card.
1. Select the family discount service
2. Enter the main line phone number and relationship to the subscriber

How to apply after signing a contract

After signing up, you will be able to access the member support site (My Y!mobile) exclusively for customers, where you can check your usage fees and contract details.
You can also apply via My Y!mobile.

#

After logging in, select the Family Discount Service from the Contract Confirmation/Change tab and apply.

Click here for detailed procedure

User Guide Menu List

Before you apply

After application

  • *Currently, the iPhone service "Bring-in Device Warranty with AppleCare Services" is not available through My Y!mobile. Please apply at the store when you sign up for the SIM/eSIM contract.
  • * You can apply for the "Bring Your Own Device Warranty" for those who use tablets, including Android/iPad.

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