Spending without thinking is a risk with unlimited contactless cards

Kevin PeacheyCost of living correspondent andTommy LumbyBusiness data journalistGetty ImagesSpontaneous spending is likely to rise if the limit on contactless cards is increased or scrapped entirely, academics say.At present, the need to press a four-digit PIN for purchases over £100 gives people a timely prompt about how much they are paying, lowering the risk of debt-fuelled purchases.Earlier this week, the…