A lottery ticket buyer who bought a ticket in South Tyneside is yet to claim a £1.5m prize, organisers have revealed.
The ticket had the winning numbers of 6, 11, 15, 32, 38, 42 and the bonus ball, 24.
It matched all six numbers in the Lotto draw on Saturday 27 March, winning a jackpot prize of £1,524,177.
The lucky ticket-holder has until 1730 BST on Thursday 23 September to make their claim.
If no-one comes forward with the winning ticket before the prize claim deadline, then the prize money, plus the interest it has generated, will go to the Good Causes - adding to the £24 billion already raised through sales of lottery tickets since The National Lottery launched in November 1994.
A National Lottery spokesman urged people to check their old tickets again.
He said: "Try checking in the pockets of clothing, in wallets, bags and down the back of the sofa - someone out there could literally be sitting on a fortune!"