By Laura Forsyth One of the UK’s leading health and wellness retailers Holland & Barratt has upped its staff pay by nine per cent from today. The retailer is set to increase its hourly pay for store colleagues by nine per cent, from £11 to £12. This is almost five per cent per cent above the new National Living Wage. Its London-based staff will receive an increase from £11.95 to £13, another almost nine per cent increase. Following the growth of the business over the past year, the pay increase puts the health and wellness brand in a strong position amongst other retailers on the high street, …