What I'm saying is - deny it, deny it, deny it.... no matter what.... make them PROVE it. Make them actually say, "WE HAVE PROOF". Make them admit the are analyzing your usage in detail and not just bluffing. Tell them it's Pandora. Make them say they know it isn't. Put the burden on them. And I don't want to hear that we can't do that, we can.
Then, if they can't prove it, too bad... if they can't prove it, tell them you're going to file a complaint with the FCC that they are unilaterally changing your wireless plan. It's extortion.
If they CAN prove it, then we need to know that. It might be a violation of customers privacy for them to be snooping around trying to catch people, many of whom are innocent.
I'm basing this on the testimonial above:::
<<I just got off the phone with them and they clearly don't know if I am tethering or not. The lady "Tanya" exclaimed that it was based merely off a spike in usage and that's why it was sent out. I just said I was streaming over Netflix and Pandora and she looked up my account and was like, "2 gigs...that's not a lot" but she did say that after the 27th they will go into "further review" of my contract but she said everything will be good. We'll see what happens, if AT&T boosts up my plan with tethering, I'll just switch to the 2 gig, only time will tell though.
EDIT - she did express the concern that the last thing AT&T wants to do is up someones internet plan, I was really nice with her and calm and she said she took notes of our call so I will report back when everything is all said and done.>>