The British winner of the £ 83 million Euromillions of last Friday still has to come forward and claim their prize six days after their number had been drawn.
When matching all five songs and two happy stars, the unknown person became the first Euromillions winner of 2025.
The signed numbers were 2, 11, 19, 30 and 49, with the two happy stars 3 and 8.
Allwyn, the lottery operator, is still waiting for the winner to come forward and claim the prize.
Andy Carter, senior winner adviser for Allwyn, said: “What a way to start the year.”
Mr Carter added: 'I can't believe that there is a happy ticket holder who has not claimed this incredible Euromillions Jackpot price, 83.474,081 reasons for them to check their ticket immediately!
'It was only six days since the Euromillions attract, but we are waiting for a breath to pay for this newest huge winner.
'We urge all Euromillions players to check their paper tickets to see if they are our missing multi-millionaire.
The signed figures were 2, 11, 199, 30 and 49, with the two happy stars 3 and 8
It is now six days since the winning songs were drawn
'The largest Euromillions victory of £ 195 million went to an anonymous British player in July 2022.
'This is our first Euromillions UK Jackpot winner of 2025, after an incredible 2024 in which four British Euromillions jackpots were won, including a £ 177 million victory by an anonymous'.
For everyone who believes they can have the life-changing ticket, they can contact the National Lottery on 0333 234 5050 or e-mail help@national-lottery.co.uk.
There have been ten earlier British winners of the Euromillions lottery, with the pair of Colin and Chris being abandoned one of Europe's biggest prizes ever when they created more than £ 161 million in 2011.
The second biggest payment was to Adrian and Gillian Bayford who took home a little more than £ 148 million in 2012, but the few split only 15 months later who called the stress of their winnings as the most important reason.
Last July a Brit has taken a huge £ 123 million, but chose to remain anonymous when collecting their prize.
