Way after the whole error thing, I walked into the store expecting $500. The guy I bought it from was very confused about the lower $350 price when he rang it up, but thought it was awesome that I would be able to take advantage of the glitch. He hurried me out of the store to make sure I got the low price without someone coming up to him about it. Awesome guy; I think he liked the joke I cracked about my previous phone, (HTC Pure) being my first smart phone, was like losing my smartphone virginity to a fat and ugly chick. Here's the thing though. I got a call (voicemail, rather) from AT&T saying they messed up and expect me to pay the difference. If I signed the receipt for $350, that's the end of the transaction right? Our official agreement that $350 is what I'm paying for this phone, end of story. If I just ignore them and they charge my account, is that illegal? How should I approach this? I'd rather not pay the extra $150 obviously. I've attached the voicemail for the lulz.