I also believe the 17 yr old would have to pay...use a cc in his name or cash, etc. I don't think you can use your cc. Someone jump in if i'm wrong here....
My boutique uses name on the CC... And I don't think my boutique in US will just release the B/K to anyone that you brought in to make purchase under that person's name without any history...Because all K/B is being "offered", isn't it?