Pret A Manger is welcoming back customers following the coronavirus lockdown with one of its biggest ever promotions – your daily coffee for just £1.The coffee chain, which has been closed throughout the COVID-19 pandemic, is now set to open all 300 of its stores in the UK after the government announced measures were going to ease.They are now offering Pret fans the opportunity to purchase a card which entitles them to 20 of Pret’s organic coffees for just £20.