(1) Notwithstanding section 13D or 39 of the Act of 2002, the Regulator or another relevant competent authority may, in writing, require any undertaking providing electronic communications networks, electronic communications services, associated facilities or associated services, any person referred to in Regulation 79 or any public authority for the purposes of Regulation 100, to provide, within such timescales and in conformity with the level of detail specified by the Regulator or the other competent authority, any information, including financial information, that the Regulator or the other competent authority, or BEREC, considers necessary for the purposes of ensuring conformity with the provisions of, or decisions or opinions of the Regulator or the other competent authority adopted in accordance with the Directive, and Regulation (EU) 2018/1971 of the European Parliament and of the Council of 11 December 2018 [OJ L 321, 17.12.2018, p.1.]. Any such requirement shall be proportionate to the performance of the task and shall be reasoned.