The Vouchers under Uridium is a new feature coming soon(actual release date unknown at this point). You will be able to enter in special codes from gift cards, newsletters, contests, etc. that can be redeemed for prizes like Uridium or items.
Keep your eyes on the Official Announcements. Once it goes active, it will be announced there as well as on your homepage in the scrolling Breaking News section.
Voucher code
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