Opinion of Advocate General Szpunar delivered on 11 April 2019.#European Commission v Kingdom of Belgium.#Failure of a Member State to fulfil obligations — Article 258 TFEU — Measures to reduce the cost of deploying high-speed electronic communications networks — Directive 2014/61/EU — No transposition and/or no notification of transposing measures — Article 260(3) TFEU — Application for an order to pay a daily penalty payment — Calculation of the amount of the penalty payment.#Case C-543/17.