Capping and stopping data usage once I reach my limit of 1gb without extending my data cap.

You're told it's not possible but that's, of course, a complete and total lie. 

Of course it's possitble, ATT won't do it because they would lose a ton of cash in the form of overages.

Frankly, it's fraud: it's impossible for you to use the minutes you've paid for - either you go over and pay for more you can't use, or you leave yourself short. Either way, ATT wins.

I'm not concerned with voice or text as that's unlimited.  But it says once I'm "close or over" the 1GB, there is a $20 of data overage adding 500 MB which I won't need. So before I even reach 1GB, it's given me a warning for I'm at 90% so I decided to just block out my mobile data for now.  It doesn't make sense because I still have 10% left but afraid I may go over..

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@MadBunny wrote:

You're told it's not possible but that's, of course, a complete and total lie. 

 

Of course it's possitble, ATT won't do it because they would lose a ton of cash in the form of overages.

 

Frankly, it's fraud: it's impossible for you to use the minutes you've paid for - either you go over and pay for more you can't use, or you leave yourself short. Either way, ATT wins.

 

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it's not a lie, there is currently no system/process in use that will stop your data automatically once it hits a certain amount. 

You can however turn the data off on your device when not using it or getting close to your "limit"

I would guess that this is why many people are reluctant to give up their grandfathered unlimited plans. The "unlimited" plans aren't really unlimited anyway - they just don't have the risk of overages.

AT&T should give the option of blocking overages instead of using underhanded and unfair tactics to try to take away our plans.