I have vadafone sim card from 2011. I have a best experience to using vadafone internet. I bought this sim card only 20 rs. I used internet in vadafone sim card and I am very happy because internet speed is very high and youtube is playing very faster and google work very fast and whatsapp work very fastest. I am very happy to use this vadafone sim card. this network is always high level in uknown place. I always calling in vadafone sim card. after I have two vadafone sim card