Tata Docomo — deduction in balance

Address: Kottayam, Kerala

on februuary 14th i did a recharge worth 30 to my main account.on 12am the same night i activated the GPRS pack for Rs 5 which is accessible for 1 day.on february 15 morning around 7.30 am i logged on to the net.after a few minutes it was shown that my last call cost some amount around 2Rs and your current balance is .5paise.

i tried to call the customer care and it was not responding.kindly help me with a better solution or else refund the amount that i lost.please help me.