I am using Vodafone sim card from 3 years.Its Internet Connection is so bad.But its Charging and billing is so good.Such as: This Sim card provide 25 MB in only RS 4 by give a message "Act data4" to "144".This sim card also provide 9 Minutes local or STD call in only RS 5.This sim’s Internet connection is good in old java phones.I am using this sim only for its charges and billing features and I will continued using this sim card.