By Leah Montebello Interest rate hikes have boosted concierge group Ten Lifestyle’s revenues as banks with more cash to hand shell out on its services. Ten, whose clients include Coutts and Natwest Black, said net revenue for the year rose 35 per cent to around £46.8m yesterday, beating forecasts of £45m. The UK firm offers preferential access to top-end experiences, including last-minute stays at Claridges and tables at the top Michelin-starred restaurants. With 85 per cent of its revenue coming from banks, who pay a handsome fee for Ten to give its most prized customers a five-star experienc…