Airtel — deduction of rs350 from mobile no [protected]

Address:

West Delhi, Delhi

sir,
As an esteemed customer of airtel from last around 10 yrs today at around 1;05pm to 2;00pm they people have deducted rs350 from my account stating that i have downloaded games in my phone but sir i even havent used internet at that time so i request you to see in to this matter and help me to get that amount back in my account.
regards
varun