Go to: Next-gen eSIM
Select your country/region and enter your email address. Check your inbox and confirm your email. Download the Kolet app: Next-gen eSIM
Log in using the same email address, then activate your free eSIM on your device. Channel
By the way, may I ask: after downloading the app on your phone and logging in, will it install it directly on the phone, or give you a QR code or something?