The data subject shall have the right to receive the personal data concerning him or her, which he or she has provided to a controller, in a structured, commonly used and machine-readable format and have the right to transmit those data to another controller without hindrance from the controller to which the personal data have been provided, where:
Vielleicht mal eine GDPR Beschwerde machen: https://gdpr-info.eu/art-20-gdpr/