I just upgraded to the HOX from the iPhone 4 about 7 days ago. I just realized that they took away my unlimited data plan and gave me a 3gb plan. I thought my unlimited was grandfathered in. this is on at&t. I called att and they filed a claim and said somebody will call you about on the 20 th. that will be after my 14 day period I can cancel my contract. what should I do? go ahead and take phone back and cancel the contract?