By Laura McGuire May proved to be another miserable month for retail, as cash-strapped Brits said no to treating themselves in the face of rising bills and unfavourable weather. Spending on debit and credit cards grew by just 1.0 per cent in May, according to new figures by Barclays, making it the smallest rise since February 2021 and below inflation which sits at three per cent. The nation’s already stretched budget tightened in April as water and broadband bills rose. Fast food, which has remained a resilient market amid the cost of living crisis, saw its first monthly decline since the pand…