My email address is not known at the time of the password reset

If your email address is not known during the “reset password” procedure even though you had an account in the past, it is necessary to reactivate your account.

To reactivate your account, click below

https://myinvoice.be.carrefour.eu/fr/migrate-email

Follow the steps in the email.

Then, for your security, you will be asked to create a new password.

If that doesn't work, you can contact customer service