This happened to me too!! I don't know what the deal is. Are you on a family plan because I am and someone had mentioned earlier they are only doing single phone plans right now and that might be it
Nope. One line, eligible for an upgrade for a month, Sprint's been begging me to buy one since July.... and of course Sprint's site is down if you try to order or view your account. I'm about to give up and do it in the AM.