I have had my new iPhone 5c for a few months now and within 10 days my 1gb of data gets used up and locked! However I had 1GB of data on my iPhone 4 and never went over I don't know what is using all my data I spent 10 days at glasto this month without my phone and somehow manages to use all of my own data ! Is it the phone ? Is it 4g? I haven't got a hotspot so what is using all my data ? Help ?!