Hi My credit seems to be running down really quick on orange pay as you go. I bought an unlocked iphone 4 a couple of weeks ago and it seemed ok, I got 400 free texts and some internet usage on the dolphin plan. Then last night i topped up £10 and that was nearly gone this morning after it charged over night. Today i topped another £10, i made sure nothing was running in the background and 3G was off but it has used nearly £7 already !! I am using wifi in my flat so cant work it out. Could some please help, i only had a quick look at the orange app on 3G today when i was out but didnt expect that. Does it use your credit really quick when you havnt got any usage left ? Any settings anyone could suggest would be great also.