Received a text from 11113000
Message states AT&T Free Msg: You're all set. You will start receiving your $10 monthly rate plan credit for each eligible phone line within 1-2 bill cycles, and will continue to receive the credit for as long as you remain on an Unlimited &More or Unlimited &More Premium plan, stay active and in good standing. View your account anytime at att.com/myatt (as a URL)
I am not on an unlimited plan and called AT&T to confirm. Is this really from AT&T? I don't understand why I received the message if so.