By Paul Greaves Lucky Brits could be sitting on a fortune without knowing it – with more than £8million in prize money still to be claimed. National Lottery and EuroMillions tickets bought in 12 locations across the country have yet to pay out. Seven of the tickets are worth £1million each. The total amount unclaimed for 2023 is a whopping £8,025,663. Anyone thinking of checking their pockets for a number-matching ticket should get a move on before the sixth-month deadline. After that the prize money will be donated to good causes. Six of the unclaimed prizes come from the EuroMillions UK Mill…