data ineligible

[IS300T]

I just received this text " AT&T Free Msg: Your data plan is ineligible for iPhone 3G. To prevent excess charges and enable Visual Voicemail, contact your telecom manager or AT&T "

I'm using 3G on media net unlimited plan. What action has at&t used ? removed media net ? or change your plan to the $30 ??

[Cowboy]

It just good if you go add the iphone data online or in the store or call 611 if they catch you with it off you will get a huge overage charge and sept 6 if you dont have it on there and they even look at your account it will put on.