Turning off the eSIM does not remove it from your phone. It will stay listed in your settings below your regular SIM, and you can turn it on again anytime.
When you turn off your WonderConnect eSIM, your phone stops using it for mobile data.
This means your phone may start using data from your primary SIM instead. If you are abroad, this may lead to roaming charges from your home carrier.
After turning your WonderConnect eSIM on again, make sure the activation settings are correct:
Select your WonderConnect eSIM as the Mobile Data line.
Turn on Data Roaming for your WonderConnect eSIM.
Make sure Data Roaming is turned off for your primary SIM if you want to avoid carrier data roaming charges.