Hello @Alex_Lec , the billing on a MEO card is started whenever the card is used for the first time. On eSIM profiles, this is the moment when the first install is completed. 

Thanks @Luís_MEO for your answer. Unfortunately I installed the esim card right when I purchased it, thinking it would “activate” only when I land in Portugal and connect to a Portuguese cell tower for the first time. For your information, I purchased a prepaid one (15days) and it’s been more than 15 days since I first installed it… The esim card is currently listed in my SIM card list on my phone but I checked off the activation button while I’m not in Portugal. Will it still work when I land in Lisbon next week ?

Greetings! I have purchased eSim and installed it but it is not active yet (more then 1 hour). Currently I am located in Poland and planning my trip to Portugal. Is there any addittional activation must be done?