Major national retailers and banks are facing cash shortages on Monday the 4th of December as members of the GMB union at G4S begin a strike action. Retailers that are expected to be affected include Tesco, Asda, Aldi and Wetherspoons as well as some banks including Barclays, HSBC and Santander. G4S Cash who employ the striking members is a leader in its field within the UK. It is part of the G4S group who are currently