Add a new plan to your existing eSIM using its ICCID - no new eSIM, no login needed.
Find the ICCID in your eSIM details (Settings > Cellular).
⚠️ Top-up replaces your current plan
Adding a new plan to this eSIM activates the new plan and deactivates the current one - remaining data on the old plan may be lost. Your eSIM (QR) stays the same; no reinstall needed.