I filed this complaint with the FCC - 10-C00217440 This phone line is a secondary line on my AT&T account. It is for my son. AT&T continually adds a $30/month data plan to my sons number on my account because they detect, in their words, a 'SmartPhone' being used on the line. My son is not allowed to use the internet on his phone. He does not use email. He uses the phone for calls and SMS Texting. For those purposes he prefers to buy used phones on ebay that have rich SMS Texting capabilities (single thread sms conversations). AT&T refuses to let my son use the phone of his choice on his account without adding an unwanted $30 a month feature. My son bought his phone in a private party transaction, without initiating in any contract with AT&T. He only wants to use his phone as the current account is configured (without a data plan). AT&T refuses to allow this to happen, resulting in extortion of fees from my son and myself and wasted time trying to remedy the problem.