You can see your remaining data volume any time in your Cockpit. There you'll find an overview of all the Travel eSIMs you've purchased.
We'll also let you know by SMS as soon as you've used 80% and 100% of your volume.
Since the usage display can be slightly delayed, we recommend adding a new data package in good time – that way you avoid an interruption to your connection. You can simply add a new package in your Cockpit under «Travel eSIM».