13.—(1) If a person believes that a website or mobile application of a public sector body has failed to comply with the accessibility requirement, that person may notify the public sector body of that failure.
(2) A person may request information in an accessible format that has been excluded from a website or mobile application of a public sector body pursuant to regulation 4(2) or regulation 7(4).
(3) A public sector body must provide a response to a notification or request made by a person under this regulation within a reasonable period of time.
(4) If a public sector body does not comply with paragraph (3) of this regulation, or a person is dissatisfied with the response received, that person may complain to the applicable enforcement body.