I am a resident of Bhopal, Madhya Pradesh. I am having airtel prepaid sim card, the No. is-[protected]. on 21.10.09 i got a message from company side that on recharge of Rs. 46/- i will get 52 minutes of STD calling and one months validity, that time my STD balance was Rs. 130/- and validity was upto 23.10.09. On 21.10.09 night i was leaving for kolkata for a week and to save my STD balance, I went for mobile recharge and before recharging,...