To block your Multicards in real time you can access the MyMulticard reserved area by entering your credentials.
If you use the Multicard through the Eni Live App you can block it directly from the App.
Yon can use the App even if you have a physical Multicard, after activating the Digital Services in the MyMulticard area, for each card and each user.
If you are not registered yet or do not have access credentials, you can call the
24 hours a day, 7 days a week:
You will then be asked to send a confirmation email to:firstname.lastname@example.org