I don't know whether changing a preferred email would be covered, but the GDPR does allow you to demand your data be corrected. If your name is misspelled, for

I don't know whether changing a preferred email would be covered, but the GDPR does allow you to demand your data be corrected. If your name is misspelled, for instance, you can force the other party to change it. https://gdpr-info.eu/art-16-gdpr/ https://gdpr-info.eu/art-16-gdpr/