Brastel is pleased to announce the launch of the TOP SIM Referral Campaign, starting September 1, 2026!

Invite your friends to try TOP SIM and enjoy 5GB of free data when they purchase an eSIM and make their first recharge.

How it works

For your friend: Get 1GB FREE

Share your referral link with a friend.

When your friend purchases a TOP SIM eSIM through your referral link and activates it on their device, they will receive 1GB of free data — even before making their first recharge!

For you: Get 5GB FREE

After your friend makes their first recharge, you will receive 5GB of free data on your TOP SIM.

The more friends you introduce, the more free data you can receive!

How to invite your friends

Open the TOP SIM app, tap the prize icon in the top-right corner, and share your personal referral link or QR code.

It’s a simple way to help your friends get connected in Japan — and get more data for yourself at the same time.

Invite your friends. Share TOP SIM. Get free data!

Campaign conditions apply. Check more details in the app.