If you erase your eSIM profile, your cellular plan has not been cancelled.
– In case you deleted your eSIM profile by mistake, you can re-install it by contacting your eSIM provider or by using your provider’s eSIM application (i.e for a Ubigi eSIM profile: How to reinstall the Ubigi eSIM profile I deleted on my iPhone/iPad | Android device | Windows 10-11 device? )
You will then be able to access your eSIM account again along with your data plans.
– In case you want to also delete your cellular plan, you may connect to your provider’s application to delete your eSIM account (i.e for a Ubigi account: How to delete my Ubigi account? )