You can write a complaint to responsible institutions that then chose how to act (send a warning to violating company, issue them fine, start an investigation e

You can write a complaint to responsible institutions that then chose how to act (send a warning to violating company, issue them fine, start an investigation etc.) You cannot sue companies yourself, unless you can prove that (big) damage was done to you as a direct consequence of violation, then you can seek compensation via civil lawsuit.