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The money will now be donated to charities supported by the National Lottery.

A spokesperson for Allwyn, operator of The National Lottery said: ‘The majority of prizes that would go unclaimed would be the smaller tier prizes.

‘It’s very unusual for a prize of this size to go unclaimed.’

The jackpot ticket was tracked down to have been bought in Bexley, south-east London, on October 4, 2025.

Currently, there are five ‘major’ National Lottery prizes worth more than £3.2million which are still yet to be claimed. Three are £1 million EuroMillions or Lotto tickets.