I will send another query to that other company, Sandro Achilles Photography Corporation, Voltastrasse 66, 8044 Zurich and see what happens next.
Bullseye!
I will contact her (Ms. G. from Rocket Mountain AG) and provide her an absolute proof, that S.A. used to work in the management @ Schober and during that time, copied data from his Schober customer who had their data processed by Schober, to later sell this data to AZ-Direct or TA-Media etc and pretend it's his own data he acquired via Mailchimp List Subscriptions (disproved by Lizza from Mailchimp Legal Team).
Also worth looking: SWINOG Anti-Spam list with a thread about the 'new Swiss Spam King'.
Please contact SECO (Lena Geiser). They know 'this case' since 2017. Please contact ECO.de (Mr. Brandolino). They know about him very recently.
Also worth notifying: Denise Anderegg DPO @ Schober and urge her once more to take legal steps against their former management member.
Of course it would be very very interesting, if your data could also be tracked back to a customer of Schober who had it's data processed @ Schober while S.A. was part of their management.
Mit freundlichen Grüssen
-Benoît Panizzon-