Ok, so i got an iPhone on a prepaid plan and somehow the guys at ATT could not add unlimited medianet for this month which means i will be charged by the Kb (1 cent per Kb) for accessing their EDGE network. Is there anyway i can prevent my iPhone from accessing the EDGE network? I have noticed that once in a while, although i am in a WiFi zone, it still accesses EDGE. I know this because, i get a status message giving me info about my account balance. So, is there anyway i can completely turn off EDGE for this month? I have set it to be renewed from the next month but don't want to end up paying for accidental EDGE charges this month. Advice? Thanks.