2 mn lottery goes unclaimed in China; to be used for welfare

What happens to unclaimed prizes? The value of unclaimed prizes is credited to the Wisconsin Lottery property tax relief fund How does the Megabucks

A Chinese welfare lottery centre said it donated over USD 3 million after the winner failed to redeem the prize by the expiration date

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mn lottery unclaimed prizes I feel like MN Lottery is purposely making it inconvenient so they can score on unclaimed winnings Or is there some agreement with lottery