Case T-224/10: Judgment of the General Court of 12 October 2011 — Association belge des consommateurs test-achats v Commission (Competition — Concentrations — Belgian energy market — Decision declaring a merger to be compatible with the common market — Commitments given during the initial phase of the investigation — Decision refusing the partial referral of the merger investigation to the national authorities — Action for annulment — Consumer association — Interest in bringing proceedings — Failure to initiate the in-depth review procedure — Procedural rights — Inadmissibility)