Tata Indicom not refund security diposit

Location/place: kolkata

Name of company/service: tata indicom (kolkata)

Name – Partha Banerjee Address- 75B, Maya Dasi Road, Parnasree, Kolkata – 60. mobile nu-9432422458 Tata Indicom-03365256284. Account nu-800197717. I disconnect my Tata Walky more than One year but till date Tata Indicom not refund my security deposit amount Rs-1000-/. I have already contact many time in Park Street Hub and Nodal Office kolkata. They are provide a request number(295857503) and Resolution time11.02.2012 but not get any response till [email protected]