i hav airtel prepaid friends card. i hav called one local airtel no. on 6 Dec.2007,at 10:05 pm.(happy hours period).i hav talked for 17 mins. for that i hav charged balance of Rs. 17.THis is wrong ,by 10 paise/min,coreect charge should be only Rs 1.70,hence exceed amount should be refund in my a/c. this happen so many times before to many customer. plz pay attention immediately.