Pre-Paid eSIM Limitations:
We can confirm that your ‘Japan Tourist’ eSIM will be ready for use as soon as you activate it and so your 8, 16 or 31 day service duration will just begin from the day that you activate the eSIM.
The eSIM will also automatically cease working when your 8,16 or 31 day service duration has ended.
Please note that it will not possible to extend the service duration / the eSIM can only be used once and so you would be required to purchase additional eSIMs if service is required for a longer duration.