Congrates on the new phone, I will need the original owner to contact us so we can get the ball rolling. Here's a handy dandy thread over unlocking phones. SOLUTION: Sprint Hints for Successful Unlocks
Unfortunately, only the account holder or original owner has the authority to put in this request.
She may contact us here on community, chat, Facebook, Twitter, or call 844.211.6770. The link above has the steps for you.