The Consumers’ Association of Canada (“CAC”), the Council of Senior Citizens’ Organizations of British Columbia (“COSCO”), and the Public Interest Advocacy Centre (“PIAC”), (collectively with CAC and COSCO, the “Applicants” or “CAC-COSCO-PIAC”) file this Application under Part 1 of the Telecommunications Act and pursuant to the CRTC Rules of Practice and Procedure, regarding the billing practices of Québecor Média and its wholly owned subsidiary Vidéotron (collectively “Vidéotron” or the “Respondent”), in respect of Vidéotron’s “Unlimited Music” service.