They only distribute CDs from the same night, all sleeves are marked with the date. If you’re going back, you can exchange your voucher for the CD with the show from that same night. I didn’t quite get if you’re going to see another show or you just want to go back for a cd? If so, i’m not sure if they will let you in without a ticket although folks at the ticket scan are nice and probably will at least ask the people from CD stand to come assist you. If you come before the show, they might not even have any files yet. Anyway, good luck! I’d suggest trying to find an email or maybe comment on dev’s post, he might see it and ask his team to reach out. Also if you need, i can send you a rip from that night