My brother was sent two phones only charged for 1.

[Ljayhova]

As title reads my brother was sent two TP2's from Sprint and was only charged on his bill for one. He's debating trying to sell the other one. My question is would there be any problems for whoever buys it as far as activation? I told him it's probably not a good idea he should send it back but he's pretty set on selling it and I don't want it to come back and bite him in the a**.