Airtel Landline Phone — Airtel Landline Phone disconnected 1 year back still asking for bills since 1 year

Address:

Indore, Madhya Pradesh

Dear Executive

I have submitted disconnection application and paid the complete bill of my airtel landline phone[protected] since more then one year back
phone is not working i have no connection but since 1 year i m receiving calls and due bills every month ..since i have no connection and no dues
why this calls are coming i dont know i have informed about this problem to airtel and i got commitment from executive that they will reverse the charges and there would be no problems in future but its happening everyday and i m really irritated please kindly help and solve my problem
Infact in past 1 years back when i gave application for disconnection they demanded the due bill which i paid even without using phone since last 2 years ...but now after disconnection application processed i dont know why the hell i m getting calls for pending bills on my personal mobile number every now n then
with regards
Prashant
[protected]