A top-up adds data to the eSIM you already have installed. There is nothing new to install and no new QR code to scan.

## How to do it

1. Open the app and choose your eSIM.
2. Choose to top up.
3. Pick the amount of data you want.
4. Pay.

The data is added to the same eSIM, usually within a couple of minutes.

## If you have already run out of data

You need some connection to buy a top-up. Use Wi-Fi, or your normal home line briefly if you can afford the roaming. This is why topping up slightly early is worth the small waste.

## Paying without a bank in the way

If you are on a weak connection, a card verification screen is the step most likely to fail. Paying from your SimFuse wallet avoids it entirely, which is a good reason to keep a small balance while travelling. See "What the SimFuse wallet is, and paying with it".

## Top-ups and validity

A top-up adds data to the plan you have, and lives inside that plan's remaining validity. If the plan is close to expiring, check what is left before adding a large amount. See "Refunds on top-ups".

## If the data does not appear

Refresh the eSIM screen. If the payment went through and the data is still missing after a few minutes, contact us with your order ID.