Consumer Redressal

Dear Sir/Madam, I have launched a complaint for servicing of a Sony Bravia LCD TV on 5th Apr, 2014- Complaint #018479475. The TV was picked up by the company\'s authorised service center on 9th Apr and since then we have not heard from the company. I have called their customer care centre several times and they have not been able to provide me with any update. I tried calling their authorised service centre directly but nobody picks up the phone. I would like to register a consumer complaint against Sony for non-service. Please let me know how we can proceed with this. Thanks