Someone in Adelaide has ended their year $20 million richer and may not know it yet after hitting the jackpot in last night's Powerball draw.
The mystery ticketholder holds the only division one winning entry in last night's Christmas Day Powerball draw across Australia.
The lottery prize is the equal largest in South Australia this year.
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Officials from The Lott are still waiting for the ticketholder to check their ticket and come forward.
The winning entry was purchased at Colonnades Lotto Kiosk on Beach Road at the Noarlunga Centre.
The Lott spokesperson Matt Hart said he hopes the winner comes forward and collects their winnings soon.
"Our elusive winner is likely oblivious to the fact they became a multi-millionaire on Christmas Day," he said.
"We're encouraging anyone who purchased a Powerball ticket from Colannades Lotto Kiosk to check their tickets today.
"Just imagine how exhilarating it would be to discover you won a prize of this magnitude on Christmas Day.
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"Your plans for the New Year and beyond could be upgraded instantly!
"Make sure you check your tickets, and if you discover you are holding the winning ticket, contact The Lott on 131 868 to begin the prize claim process."
The winning numbers in Powerball draw 1545 were 7, 23, 29, 20, 11, 16 and 17.
The all-important Powerball number was 17.
The only division one winning entry in Powerball draw 1545 was the ticket from South Australia.
The Lott's division one winning tally has now reached 419 so far this year, including 36 won by South Australia Lotteries customers.
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