To update your data, access your account with your registered email address and password. You can do it from here, by clicking the following button:
Once verified, you will access your client area, with the available options as shown on the following image:
You can update your data, both in "My personal data" and in "My addresses".
If you still need help on this topic, use the following form to easily contact our Customer Service, and describe your doubts or incidents: