Make sure you take ALL of your receipts with you. Last month our daughter had vouchers and we went to that same location to have them activated as the previous poster had said, no lines. For some reason they would not activate. She did bring her receipts with her, but forgot one thing. It took over a 1/2 hr to get the tickets.
They did give us fastpasses for two rides that did not have a time on them, we could use them anytime for the entire party, since we had been so patient and it took so long.