That’s one expensive oversight.

You know that feeling when you find an expired gift card that had, like £1 left on it?

Multiply that feeling by a million, and you might understand how one poor Bushey soul will soon feel if he ever realises that he let a lottery ticket worth £1 million go unclaimed.

Camelot UK Lotteries Limited, operator of The National Lottery, confirmed the £1,000,000 Millionaire Raffle prize from the Lotto draw on 23 April, 2016 has remained unclaimed more than 180 days after the draw took place.

That means that the winner forfeits the prize and the money will be put into National Lottery-funded projects across the UK.

The ticket-holder bought their Lotto ticket in Hertsmere and the deadline for the ticket-holder to claim their prize was at midnight on Thursday, October 20.

Andy Carter, senior winners’ advisor at The National Lottery, said: “We tried very hard to find the ticket-holder and it’s a real shame that they have missed out, but there is still one winner – the nation.

"This money, and all the interest earned over the 180 days, will now go to benefit projects all over the UK funded by The National Lottery.”