📌 JB eSIM / JB SIM Card
If we have not yet sent the eSIM activation URL or the physical SIM card has not yet been shipped, you may request order cancellation and a refund.

To cancel your order, please contact our customer support through our official LINE account (@913athnc) and provide the following information:

• Order number
• Customer name
• Customer email address

If you are unable to use LINE, you can also contact us via Email (info@jbrg.jp).

📢 Refund Information
• For cancellations due to customer reasons, a 5% credit card transaction fee will be deducted from the refund amount.
• For cancellations due to reasons caused by our company, a full refund will be issued.

📌 JB Voice SIM / JB Voice eSIM
Since the application process for a Japanese phone number begins immediately after the order is completed, cancellations and refunds are generally not available.

If you have special circumstances, please contact us through our official LINE account. We will review your case and assist you accordingly.

We are sorry, but we are unable to directly modify the order details.

If you need to make changes to your order information, please contact us through our official LINE account. We will assist you in confirming and processing the requested changes.

You can pay with credit cards or debit cards.

If you use a credit card or debit card issued outside Japan, some card issuers may charge a foreign transaction fee. The availability and amount of any additional fees depend on your card issuer’s policies. Please contact your card issuer directly for details.

Since we are a Japan-based telecommunications company, all product prices are displayed and charged in Japanese yen (JPY).

If you use a credit card or debit card issued outside Japan, some card issuers may charge a foreign transaction fee. Whether a fee applies and the amount charged depend on your card issuer’s policies. Please contact your card issuer directly for further details.

① Enable “Data Saver Mode”

Instagram App → Profile →【Settings and privacy】→【Data usage and media quality】

📌 Turn on “Use Less Mobile Data”
📌 This reduces video preloading and the loading of high-quality photos/videos.

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② Limit Media Quality and Preloading

Instagram App →【Settings and privacy】→【Media quality】

📌 Recommended settings:

✔ High-quality media → Set to “Wi-Fi only” or turn off
✔ Video preloading → Limit or turn off (if available on your device)

📌 Prevents large amounts of video content from loading automatically while scrolling.

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③ Turn Off Background Mobile Data (iPhone)

【Settings】→【Cellular】→【Instagram】

📌 Turn off mobile data access or limit background activity.
📌 Prevents the app from continuously using data in the background.

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④ Threads (Same Account System)

Threads uses the same Meta system settings as Instagram.

📌 Recommended settings:

✔ Enable “Use Less Mobile Data”
✔ Limit high-quality media
✔ Turn off background data usage

◆Stop videos from auto-playing in your Facebook news feed
https://www.facebook.com/help/1406493312950827/?helpref=uf_share

◆Adjust the number of photos you want to see to control the data usage and loading speed on Facebook.
https://www.facebook.com/help/mobile-basic/656932384361200/

＜Quoted from Facebook＞

◆ Enable “Data Saver” mode
Tap your profile picture in the YouTube app → Go to Settings → Video quality preferences → Under Mobile networks, select Data saver.

◆ Adjust “Video Quality Preferences”
Open the YouTube app → Tap your profile picture → Settings → Video quality preferences → For Mobile networks, choose Data saver (e.g., 480p or lower).

◆ Turn off “Autoplay next video”
Tap your profile picture → Settings → Playback → Toggle off Autoplay next video.
This prevents continuous playback in case you fall asleep or forget to stop the video.

◆ Limit video preloading while browsing your feed
Tap your profile picture → Settings → Playback → Set Play videos in feeds to Off or Wi-Fi only.

◆ Turn off mobile data usage for the YouTube app
For iPhone:
Go to Settings → Mobile Data → Find YouTube → Toggle off to disable mobile data usage.

For Android:
Go to Settings → Apps → YouTube → Mobile data & Wi-Fi → Turn off Allow background data usage.

◆ Turn off background app refresh using mobile data
Go to “Settings” → “General” → “Background App Refresh”
Since most apps don’t need real-time updates, it’s recommended to set this to “Wi-Fi” so mobile data isn’t used.

◆ Turn off “Wi-Fi Assist”
Go to “Settings” → “Cellular” → Turn off “Wi-Fi Assist.” When Wi-Fi connection is poor, the system won’t automatically use mobile data.

◆ Turn off mobile data for iCloud backup
Go to “Settings” → “Cellular” → “iCloud Backup,” and turn it off so mobile data won’t be used for automatic iCloud backups.

🅰️ No, you do not.

The Personal Hotspot name (Wi-Fi name) and password are based on the smartphone device settings, not the SIM card settings.

Therefore, regardless of how many SIM cards or eSIMs are installed on your phone:

✔ The Personal Hotspot name and password are shared device settings and do not need to be configured separately.

⚠️ The setting that needs to be configured individually for each SIM card or eSIM is the Personal Hotspot APN.

🅰️ Yes, you can.
We recommend completing the APN settings before departure, so you can use the Personal Hotspot function immediately after arriving in Japan.

⚠️ However, our SIM/eSIM products use Japanese local mobile networks and are not international roaming products. Therefore, they cannot connect to the Japanese Docomo network while you are outside Japan. Even if the APN settings have been completed, you will not be able to confirm whether the settings are successful or test the Personal Hotspot function overseas.

📌 In short:
✔ You can set up the APN before traveling.
✔ You can use it after arriving in Japan.
❌ You cannot test whether the APN settings are working while outside Japan.

This is a normal situation. Please test the connection after arriving in Japan and connecting to the mobile network.