Can I add more data?

Yes, if the plan is marked top-up capable. Open My eSIM, pick the active profile and choose a top-up — it applies to the same profile, no reinstall. If the plan cannot be topped up, buy a new plan and install it as an additional profile.

Yes, more data can be added — whether that happens on the same profile depends on whether the plan you bought is marked top-up capable. If it is, open My eSIM, select the active profile, and choose from the top-up options offered; the system adds the data to that same profile without a full reinstall. If the original plan does not support topping up, a new plan can still be bought and installed as an additional profile. This page walks through both routes, how to check which one applies to your plan, and the most common pitfalls.

It suits anyone running low on data mid-trip who would rather not do a full reinstall, anyone wondering how topping up differs from buying a new plan outright, and anyone about to buy their first plan wondering whether to pick a top-up-capable one in advance. Which plans support topping up, whether it can be done once or repeatedly, and the cost of a top-up all vary by plan and by each plan's own supplier — always check that plan's own page directly.

What topping up actually means

Topping up means adding data to an eSIM profile that is already installed and in use, without deleting the existing profile or reinstalling from scratch. The system combines the topped-up amount with whatever remained (or starts a fresh cycle, depending on that plan's own terms), while the profile's ICCID and any network settings already configured stay exactly as they were.

This is the key difference from buying an entirely new plan, which usually means installing a fresh eSIM profile, scanning a new QR code, and configuring network settings all over again. Topping up is therefore quicker and simpler, if the original plan supports it.

How to check whether your plan supports topping up

Each plan page states whether it supports topping up, usually within that plan's details or terms section. If unsure, check before buying every time, especially for a longer trip where usage might exceed what was bought initially. This label is not consistent across every plan even for the same destination, since it depends on each plan's own supplier.

If a plan has already been bought and it is unclear whether it supports topping up, open My eSIM and look at that profile directly. If a top-up option appears, it is supported. If nothing of the sort appears at all, treat that plan as not supporting topping up, and buy a new plan instead.

The steps for topping up an active profile

1. 1Open My eSIMSign in and open the page listing every profile linked to your account.
2. 2Select the profile currently in usePick the profile you want to top up, not a different one that may be installed but not in use for this trip.
3. 3Review the top-up options offeredIf the plan supports it, the system shows the data amounts and validity options available for topping up — compare before choosing.
4. 4Confirm and paySelect the option needed and confirm payment through the channel the system supports.
5. 5Wait for the system to add it to the same profileThere is no need to scan a new QR code or reinstall — the data is added to the same active profile automatically.

If the plan does not support topping up

A plan that does not support topping up still works normally until its data or validity runs out. At that point, the option is to buy a new plan and install it as an additional eSIM profile on the same phone. The original profile stays on the phone, but with no data left until bought again.

Installing a new profile requires scanning a fresh QR code and configuring network settings again, unlike topping up which skips this step entirely. If frequent additional purchases are expected during a long trip, choosing a top-up-capable plan from the start is more convenient in the long run.

How many eSIM profiles can be installed at once

Different phones support a different number of eSIM profiles installed at once, and some limit how many lines can carry active data simultaneously even if more are installed than that. The exact detail depends on your phone's own brand, model, and operating system version — it is not a limitation coming from the plan itself.

If the phone's profile quota is already full and a new profile must be installed, an unused old profile has to be removed first. Check the phone's compatibility and limits using the device checker before travelling if several profiles are expected to be installed during one trip.

Timing: topping up before or after running out

Topping up before data runs out completely is usually safer, since if it runs out right when internet is genuinely needed — searching for accommodation or booking a ride, say — even a brief gap without a connection can cause real inconvenience. If the remaining amount on My eSIM looks close to empty, topping up ahead of the moment it is actually needed is the safer approach.

Topping up after data has run out completely still works on plans that support it, but during the gap between running out and completing the top-up, there may be no internet at all. If you are somewhere without Wi-Fi to fall back on, completing the top-up during that gap can be trickier than expected.

Does topping up affect the profile's expiry date?

The effect of a top-up on the expiry date varies by plan. Some extend the expiry date in line with the top-up's own validity period; others add only the data amount while leaving the original expiry unchanged. There is no fixed rule common to every plan — read the details of the top-up option shown on My eSIM before confirming, every time.

Can it be topped up once, or repeatedly?

Some plans allow topping up repeatedly, as long as the profile has not expired. Others limit it to a single top-up only. This detail varies by plan and by each plan's own supplier. If more than one top-up might be needed during a long trip, check this condition on the plan page before the very first purchase.

Comparing the two routes: topping up versus buying a new plan

Common mistakes about topping up

A common mistake is waiting until data runs out completely before attempting to top up, when at that point there may be no internet to even reach My eSIM without spare Wi-Fi. Another mistake is buying a whole new plan when the existing one already supported topping up, leading to an unnecessary reinstall that may also run into the phone's own profile limit.

Some also wrongly assume every plan supports topping up the same way, then are surprised when no top-up option appears as data runs low. The better approach is to check this condition at the time of choosing the plan in the first place, not once data is already running low.

What to check before deciding to top up or buy new

• Does My eSIM show a top-up option for this profile
• Is remaining data close to empty or already gone
• Does the phone still have profile quota left, if a new plan must be installed
• How many days of the trip remain — worth one top-up or better to buy a new, larger plan
• Does this top-up extend the expiry date, per the details shown

The range of top-up sizes usually offered

The top-up options shown on My eSIM usually come in more than one size, to suit both someone needing just a little more data for the last day or two of a trip and someone needing considerably more because the trip has run longer than originally planned. The number of options and the amount in each are not the same across every plan — each plan's own supplier sets them.

Before choosing a top-up size, roughly estimate how many days of the trip remain and what the remaining usage pattern looks like, rather than picking the largest or smallest option without thinking it through. The data calculator helps produce a rough estimate before deciding.

Why some people buy a new plan even when topping up is possible

Even when the original plan supports topping up, some still choose to buy a new plan instead, because a new plan might offer better value per unit of data, or cover a longer period suited to a trip that has extended considerably, to the point where several top-ups add up to less value than one fresh plan. Comparing value between the two routes should happen before deciding, rather than defaulting to whichever route feels more familiar.

Another reason is that a new plan might cover an additional country the original plan does not, such as a trip extending into a neighbouring country not planned for originally. In that case, topping up the original plan does nothing at all if it does not cover the new country — a new plan covering the correct destination has to be bought instead.

If unsure whether to top up or buy new, ask before deciding

Some situations have no single clearly better answer between topping up and buying new, especially when it is unclear how many extra days the trip may run or whether another country will be added. In cases like this, asking the team via LINE or email before buying anything further usually saves more time and money than trial and error alone, particularly if the original plan carries a specific condition not stated clearly on the page.

Keeping a screenshot of the My eSIM page showing the remaining data before asking also helps the team check things faster, since the exact figure at that moment is visible directly, rather than being described in rough words that could be interpreted differently between the two sides.

If deciding while already mid-trip, do not wait until data is almost completely gone before sending the question, since the time spent waiting for a reply could fall exactly when the connection is needed most. Asking as soon as the remaining amount is clearly trending down leaves more room to decide than waiting until the last minute.

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