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".
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If you still need help on this topic, use the following form to easily contact our Customer Service, and describe your doubts or incidents: