Yups !
Got conned by Maxis when i first got the iphone 3G . Lots of things not mentioned when you sign up
1) SMS not included in the iValue
2) The " system cycle " .
I got the plan at the end of the month , so thought the 1Gb data will be till 30 of thenext month ,
but actually , since my bill is out on the 14th every month , the pro-rata 1Gb to 14th = 450Mb .As usuall ,when get a new phone , start down loading and surfing like crazy , so over limit and charged Rm250 TWICE coz i only found out about this on the 3rd month (was on auto-debit)
3) Family plan canceled
Calls to sub-line no longer free
4) 3Gs out 3 weeks after i bought the 3G , can't trade in !
All in all , paid over Rm700 . Went to Maxis CS , she says she understands , coz she is experiencing the same problem , same with hundreds of others !
Seems they've re-worked their billing , but it's Rm700 down the drain

So be careful guys when you sign up for your iP4
i personally think its not exactly right to said the telco conned you..esp item 2, it spell out clearly and its the No.1 thing being stressed by maxis sales when helping you to signup new plan...and it make more sense to pro-rata the bill..
sometimes, we need to take on the responsibility too as consumer to research when buying things and spend at least sometime reading terms and conditions, etc...a good example: just imagine everyone complain and accuse the cinema for conning them to watch Twilight