RCOM — Security deposit not refund - more than one year passed since disconnection.

I disconnected the rcom land-line phone no.[protected] on 25th apr'2015 but rcom is not refunding the security deposit. According to rcom it is refunded within 60 days but now more than one year have been passed but i am not getting the security amount yet. I was calling many times to rcom customer care but they are unable to resolve the issue and case is pending in appellate authority since 13th aug'15 more than eight months passed but no positive response every time i called they provide me new complaint nos. And tell me wait. Security deposit is not a big amount for company like rcom why they unnecessary holding small amount of consumers. I request to please refund the security deposit with one year interest asap because your specified limit is over 11 months back (If customer is delayed the payment you charge fine of rs 100 for one month for late payment if rcom is unnecessary holding the security deposit for 12 month what is the rule?) this is a clearly matter of cheating with customer by unnecessary holding the security deposit for (Earning the interest on customer's money) and shame for big company like reliance to cheat customers by this kind of cheap mentality. My alternate contact no. Is [protected].