3.4 Your right for complaint at a regulating authority <p> You have the right to complain at a regulating authority about the use of your personal data by us. The appropriate regulating authority for us is: The State Commissioner for Data Protection and Freedom of Information of North Rhine-Westphalia, Kavalleriestr. 2-4, 40213 Düsseldorf, Phone: +49 211/38424-0, Fax: +49 211/38424-10, Website https://www.ldi.nrw.de, E-Mail: poststelle@ldi.nrw.de </p>