Location/place: chennai

I have been charges by airtel for sportslive.when i am not aware of it.They charged me 99rs once.Then i discontinued.Then again after 4hours i got a message “THANKS FOR CHOOSING SPORTSLIVE” Where actually i dint opt or did anything again i have charge.When i try to call to airtel customer care there is no response from them side.Please kindly help me.My mob numb 9840618708