Hello I've had my iphone 4 for almost a year now. Its unlocked and bought at the apple store. My carrier is koodo (Canadian). I recently restored my phone to its factory settings and everything was ok. However when I woke uo this morning I got a text message from Koodo saying that I spent more than 10$ of 3g yesterday. So I go to settings > general > cellular > and disable 3g. Now my whole carrier doesn't work. I can't call or text anyone. I tried disabling the roaming charges one. The only one that would bring back my carrier is if I enabled 3g. Please help me!