Unclaimed prizes are kept by the lottery jurisdiction. If a Grand Prize goes unclaimed, the money must be returned to all lotteries in proportion to their sales for the draw run. The lotteries then distribute the money, based on their own jurisdiction's laws, to other lottery games or to their jurisdiction's general fund, or otherwise as required by law.
Yes! Powerball tickets are available to buy in 47 US states and territories and theLotter’s service makes tickets available worldwide. theLotter local offices buy official US Powerball lottery tickets on your behalf from inside the US, and with theLotter’s See Your Ticket Service, you will see a scan of any and all Powerball tickets you buy in your theLotter account before the relevant draw.
When a player wins the Lotto America jackpot, the winner may choose to receive the prize in annuity payments or may elect to take a lump-sum payment. A player has 60 days from the date they claim their prize to choose the "cash" option or the "annuity" option. If the player selects the "cash" option, the prize will be a single cash payment equal to the amount available to the lottery for the jackpot prize pool. The "cash" prize is estimated to be approximately one-half of the estimated jackpot, depending on current interest rates. If the player chooses an annuity, it will be paid in 30 payments over 29 years, and the annual payment will be increased by a rate as determined by lottery officials. If the cost to purchase the annuity is less than $250,000, the lottery may elect to pay the prize as "cash."

If you still have doubts as to whether you can buy lottery tickets online, check out the Iraqi national that won $6.4 million in the Oregon State lottery despite not being a) a citizen, b) a resident and c) having never set foot in Oregon (or even the US for that matter!). Click the link on the text to read more about this watershed moment in buying lottery tickets online and the unsuccessful steps taken by the local government to try and block this payment. Despite all the efforts, the lottery winner had acted completely legally and was entitled to his millions. 

The US Powerball is a standard lottery draw game based and operated from the golden State of California. The US Powerball has been making millionaires and multi-millionaires since its first drawing way back in 1992. With over 25 years of experience in the lottery industry, the Powerball, along with many other State lotteries, has broken through the final glass ceiling and transformed itself from an interstate lottery into a truly international lottery of global reach. 
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