almost half of all people who have visited discounters such as 99p stores , poundstretcher , b&m bargains and wilkinsons are middle class and among the country 's highest earners , research has found .
almost half of all people who have visited discounters such as 99p stores , poundstretcher , and wilkinsons are now middle class and among the country 's highest earners , new research has found .
the news comes on the back of the massive rise in popularity of aldi and lidl .