12 has all the dazzling dance constellations, and the boxes are all open. Why are there no photo frames and business cards in the backpack?

You go to the backpack > recently acquired > and look at the badge inside.

If you still don't, you can ask questions in the forum game service area, and the moderator will tell you that you can click on the avatar in the upper right corner of the game to enter the chat window and select the third "anti-addiction problem"-"artificial service" to send your questions.