Order of the Court (Tenth Chamber) of 14 May 2019.#Acea Energia SpA and Others v Autorità Garante della Concorrenza e del Mercato and Others.#Requests for a preliminary ruling from the Tribunale Amministrativo Regionale per il Lazio.#Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court — Directive 2005/29/EC — Unfair business-to-consumer commercial practices in the internal market — Directive 2009/72/EC — Internal market in electricity — Directive 2009/73/EC — Internal market in natural gas — Directive 2011/83/EU — Aggressive commercial practices — Conclusion of contracts for electricity and natural gas supply which were not requested by consumers — Conclusion of distance or off-premises supply contracts in breach of consumer rights — Competent authority to penalise such conduct.#Joined Cases C-406/17 to C-408/17 and C-417/17.