Don’t panic, AT&T iPhone 4S buyers: You can keep unlimited data

There’s a mild uproar spreading among AT&T iPhone 4S (s aapl) customers who are running into what appears to be the loss of their grandfathered unlimited data plans when upgrading to the iPhone 4S. Don’t worry, it isn’t AT&T trying to screw you; it just isn’t great at designing an ordering process.

We’ve gotten tips and seen on Twitter that some folks are running into trouble using AT&T’s upgrader. Specifically, they’re seeing a message suggesting that their unlimited data plans won’t carry over with the purchase of an iPhone 4S. Luckily, that’s not true. If you ordered through Apple, you probably didn’t even run into any trouble; its site makes fairly clear that those upgrading can keep their unlimited data.

If, however, you went through AT&T’s site, you may have encountered a notice telling you you require a different Data Add-on Plan, as in the image below from tipster Chris Guthrie. You sort of do, but in name only. If you continue through the process on AT&T’s site, you’ll be fine. AT&T admits the site is a bit confusing, but are working on making it better.

It’s understandable that people would covet their unlimited data plans, since like an exotic species of rainforest flower, there might be a time soon when they go completely extinct. The iPhone 4S might be even more data-dependent too; new voice-activated personal assistant app Siri requires an active internet connection to do its thing, according to Apple promotional materials, and though it should only really sip data, a lot of sipping could add up.

If you’re still uncertain about whether or not your unlimited data plan will survive, feel free to give AT&T’s support department a call, but they’ll tell you the same thing: your plans are safe, mobile data fiends.