Note that the offender's privacy policy [1] appears to let users (e.g. you or me) contact [email protected] "to know whether their Personal Data has been stored and [to] consult the Data Controller to learn about their contents and origin, to verify their accuracy or to ask for them to be supplemented, cancelled, updated or corrected, or for their transformation into anonymous format or to block any data held in violation of the law, as well as to oppose their treatment for any and all legitimate reasons."

[1] https://www.iubenda.com/privacy-policy/347981/full-legal