[Resolved]  Airtel Customer Service Centre — blocking of air tel sim

Address:

Mumbai City, Maharashtra

I am an old prepaid customer of airtel.My number was [protected] and today my mobile is misplaced. I want to block my sim .I dont know why I cannot block this sim with my ID proof?? I called on the number the message the number you are trying is not reachable,please try after sometime and perhaps it is switched off.am I responsible if there is any misuse of my number??I just want to block it and the balance amount may please be transferred to my duplicate sim to be provided by the company.
Richa