Short answer
If the eSIM is missing from phone settings, it may not be installed, it may have been deleted, or it may be installed under a custom name.
Check first
Open your SIM/eSIM settings:
iPhone: Settings → Cellular / Mobile Data.
Android: Settings → Connections / Network & Internet → SIM Manager / SIMs.
Our eSIM usually has no phone number, but this is only a clue. To confirm, tap the eSIM line and check whether detailed settings show eSIM Go.
If you deleted it or cannot find it
Open the app → Settings → Get Link to Install eSIM, if available.
If the link is missing or shows an error, contact support with screenshots.