First photo pass

Hey! I just cold emailed a band coming and I got accepted to shoot it. However, in their reply they said I would get added to the guest list so I just have a few questions cause idk how to go about it, additionally, the gig is 18+ and I'm 17 but I did outline this to the band manager

1) How early should I arrive to the venue

2) Would I get a photo / media pass or with the guest list

3) How should I go around it if they ask me for ID or something when I'm entering

Greatly appreciate any insight and/or advice from anyone 🙏🙏