guess you should have asked your dad if he wanted it first
You have/had 30 days to return it to Sprint, doesn't look like you're going to get what you're asking for which means you're asking for too much..
Anyway, good luck with all of that, I read every entry in this thread and there are some good offers... one thing you have to keep in mind when selling like this is that you won't always get what you want, when you don't that means you're selling too high... remember an item is only worth what someone will buy it for...