Uninor — automatic activation of chat service

Address:

Goa

Dear sir
my uninor mobile no is [protected].On 12th january 2012 evening suddenly i got sms that "dear customer you have successfully activated chat service at Rs. 20.00 & your subcription is valid for next 20 days". without my request sending They cut balance of Rs. 20.so many times i called customer care but they also not responding to my call. i want my hard earned money back.sir please help me and please register my complaint and refund me my balance money in my account.
Thanking you

Pradosh Naik
[protected]