The competency for submitting the request to the supervisory authority
Without prejudice to any other administrative or judicial remedy, every data subject shall have the right to lodge a complaint with a supervisory authority, in particular in the Member State of his or her habitual residence, place of work or place of the alleged infringement if the data subject considers that the processing of personal data relating to him or her infringes this Regulation.
Chapter VIII, Article 77, Paragraph 1
Regulation's subject matter
Right to lodge a complaint with a supervisory authority (Article 77, Chapter VIII)