I purchased 7 day unlimited which is prepaid means i think i cannot browse once the prepaid amount is over.I could not browse even after half n hour.they said activation will be after half and hour and you can use internet.i sit in front of broadband internet connected to pc to find out how to make internet work.one poster posted sms GPRSPRE to 537333 for activation.(which made my 3g to work perfectly i got 400Kbps)i dont know if all mobiles can activate cellone 3g services just by sms.after browsing 10gb i was getting doubt what if they charge because i activated through sms.during that time i visited some page to know balance by sms.now i forgot the number and message.can anyone tell me how to check balance through sms.at that time it was 25Rupees left.will i be charged 10GB worth of data?