Hi all sifus ...

need a lil' info/advice here...
bought an 3G iphone from "not-from-maxis"
been using abt 3 mths...
every mth the data bills charged was abt 300-350 EVERY MTH
i have checked my wifi is OFF everytime n im sure i did not do any browsing..
anyhow i can stop the hefty sum of data being charged ..?
or is this bcoz of my phone is bought outside instead of maxis?

PLS PLS PLS PLS help ....

not planning to use much on internet browsing tats y not taking up maxis' data plans ...
if its abt unabling the edge availability on my iphone, ive tried http://iphonenodata.com/ as intro by other sifus here as well..
but when i launch my safari i cannot proceed on with "disable EDGE/3G"...
sob*sob* .. need all your helpzZz...