Nestlé Rowntree's mint brand Polo is giving consumers the chance to win instant cash prizes with its 'scroll in the hole' promotion starting this month. Sales are expected to increase as shoppers try their luck at winning £10 notes, which have been hidden inside 1,000 tubes of Polo original. Retailers should have promotional packs in prime positions in store, ideally by the till, to capture additional impulse sales, says Graham Walker, sales communications manager at Nestlé.