[Resolved]  Calcutta Telephones — 20% Rebate on BB charges denied without assigning any reason. Tel Ph no[protected]

I am customer of BSNL's Calcutta Telephones; my phone number is 2564 6540 & customer ID is :[protected]. Calcutta Telephones offered 20% rebate on broad band charges to Government and Govt. Undertaking employees. I applied on 10 Jun 2009 with employer's certificate for the rebate and submitted the application with their customer care office at my home telephone exchange i.c Panihati Telephone Exch.. Surprisingly they have not affected the rebate to my broad band charges. I brought the matter to their notice on 17th Feb 2010; they asked for submission of another application. I obliged and they received the application but to my utter dismay they have not affected the application yet. I find the bill dated 07/03/2010 does not reflect any rebate on broad band charge!
Besides submitting the application with their office at Panihati Exchange, I faxed my application along with latest telephone bill and the letter of receipt of said application to BSNL's Calcutta Telephones A.O.T.R at his Barrackpore office, apprehending non compliance of my application but nothing worked. It seemed they are deep sleep and age old lackadaisical, indifferent attitude still persists. It is not a matter of surprise that I called number of times the Accounts Officer Barrackpore, being advised by BSNL.s SAMPARK i.e.1500; but none ever picked the phone!!
Could anyone suggest me what else could be done remotely ( as visiting their office , taking leave from your own, never guarantees any remedy. You may find none or none may talk to you).