It has joined a small panel of professional firms advising Lottery players who win more than £250,000, a payout that puts winners in the mass-affluent category. Winners of sums of £1 million or above are propelled into the ranks of high net worth individuals.

Since the UK national lottery started in the 1990s, there have been a number of stories of winners ending up spending all their winnings quickly or even reverting to lives of relative poverty.

For example, John McGuinness, a hospital porter who won £10 million on the lottery, returned to a life mired in debt after his wealth was spent on board membership of a Scottish football club.