Caffeine addicts have found a ‘genius’ alternative to keep getting ‘free’ coffee after Pret A Manger announced big changes to its beloved subscription service – which entitled customers to five barista-made drinks each dayCaffeine addicts have found a ‘genius’ alternative to keep getting ‘free’ coffee after Pret A Manger announced big changes to its beloved subscription service – which entitled customers to five barista-made drinks each day