Originally Posted by minyuni
do you think it would be better if i just called sprint and begged them to unlock the blacklisted phone? lol i know its a long shot but i dont really want to do anything illegal
If I understood right, you already called sprint once and they know that you bought the phone. You can try to call them and discuss your situation, but I doubt that they will unlock the phone if they don't get the bill payed - still worth a try, because they know you have the phone. But if they want you to pay instead of someone else who should pay, then I would not agree to that.
Just in case, find their homepage, if it exists, where you should have an opportunity to check if your IMEI is indeed in blacklist.