Will call @ concerts?

I want to go to warped tour (the concert is in 6 days) and the only option they have is willcall. It says the person who owns the credit card has to pick up the tickets at willcall... What if I use a visa giftcard? Or ticketmaster giftcard? Then what? Also, is there a way to print tickets on ticketmaster without using the ticketfast delivery option? Thanks...