The data plan starts upon the first data usage in a supported country.

  • If you purchased an Asian Plan, your data plans starts upon first use in a supported Asian country.
  • If you purchased a Global Plan, your data plans start upon first use in a supported Country

You can add an eSIM without starting the data plan. 
Make sure sure you are in flight mode and connected to WiFi.  Then be sure your home SIM is selected for Data, Voice and SMS.  Finally, on the day of your trip, you can select the SIM2Fly as your default data SIM.

Use within 60 Days.
You have 60 days after adding the eSIM to your phone to make first data usage.