That is a premium gacha ticket... the premium never goes away no matter what. What are you talking about? lol. That's the thing that you can draw from with 5 Flower Gems. He's right though, you can't use it from the gift box.

Premium tickets are not used on the premium gacha tab. There's supposed to be a separate gacha tab for tickets. That tab is missing after the update. The item list in the office points you to the place to spend any listed item but it points premium tickets to the "1 time only" gacha tab because the correct tab doesn't exist.