Court of Justice (Eighth Chamber) 3 September 2020, C-539/19 (Bundesverband der Verbraucherzentralen und Verbraucherverbände - Verbraucherzentrale Bundesverband eV v Telefónica Germany GmbH & Co. OHG.)

JUDGMENT OF THE COURT (Eighth Chamber) 3 September 2020 ( *1 ) (Reference for a preliminary ruling — Roaming on public mobile communications networks within the European Union — Regulation (EU) No 531/2012 — Article 6a — Article 6e(3) — Roaming provider required to automatically apply the regulated roaming tariff — Application to consumer having opted for a specific roaming tariff prior to the