Rights of the controller in case of the inappropriate requests from the data subject
Information provided under Articles 13 and 14 and any communication and any actions taken under Articles 15 to 22 and 34 shall be provided free of charge. Where requests from a data subject are manifestly unfounded or excessive, in particular because of their repetitive character, the controller may either: (a) charge a reasonable fee taking into account the administrative costs of providing the information or communication or taking the action requested; or (b) refuse to act on the request. The controller shall bear the burden of demonstrating the manifestly unfounded or excessive character of the request.
Chapter III, Section 1, Article 12, Paragraph 5
Regulation's subject matter
Transparent information, communication and modalities for the exercise of the rights of the data subject (Article 12, Section 1, Chapter III)