I have exceeded my data limit for the month, my parents are gonna kill me.. I have always used "Use only 2g networks" when i was not using the internet. Is it due to the apps that are causing the high data usage? As I have installed some games in the month, using my Wi-Fi But even so, I have already ticked the "Use only 2g networks" option. Is this the correct way to turn off my 3G?? Or is there any app that can completely turn off the 3G and make sure I do not use any data AT ALL?