The safest way is not to buy it. There may be cases where you have bought a ticket and the official does not approve it. Finally, you can't get in. I only know that many star tickets will have this situation, but ACG has not paid attention to it, so it is not clear. This is a conservative estimate. Since it is a student party, I'd better think it over. Or you can also pay attention to the news of your internal air ticket transfer at the same time, but this way is also to be careful of scammers. A lot of nonsense, because I almost went once. I think there is probably some mutual appreciation (oェ? ` o)