Tikona — Legal action threat calls from tikona

Address:	560068
Website:	www.tikona.in

I had taken taken connection by paying 3 months advance, but due to internet connectivity and poor service, i had requested for disconnecting the service of after a month o[censored]sage. My request wasn't processed and bills were generated every month. Even after calling them and requesting to stop unnecessary bills generation, no action was taken against this.
4 days back got a call from mobile no: threatening me to pay the bill or face the legal action. No reply from customer service also after several requests.
Request No: 1-[protected], 1-[protected].
Details of connection are as below:
User ID: [protected]
Connection taken on: 02-Aug-2015
Disconnection request made: 09-Sept-2015
Amount paid: 3021/- Rs.
But till March 2016 bills has been generated and they are trying to cheat people by making legal threat calls.
Tikona has to return me back remaining amount from my advance amount.