How can I redeem my voucher (Vakantieveilingen / Groupon / Ticketveiling / etc.)? Follow Click here for all information about redeeming your voucher. Related articles I am having problems redeeming my voucher (Vakantieveilingen / Airmiles / Ticketveiling / Groupon / etc.). Can you help? How can I contact Ticketmaster? I want to redeem my voucher(s), but there is no seat map to choose my seat? I have redeemed my voucher(s), but the seats aren't next to eachother. What can I do? What's a Collector Ticket?