About 7 500 employees at Oakbay Investments will lose their jobs at the end of May if the Gupta-owned company’s bank accounts remain closed, staff at the company wrote in an open letter to banks on Wednesday. In a letter addressed to Barclays Africa CEO Maria Ramos, FNB CEO Jacques Celliers, Standard Bank CEO Ben Kruger and Nedbank CEO Michael Brown, the staff pleaded with them to “reopen the bank accounts so that we do not have to suffer” as they have “not done anything wrong”. Oakbay’s public …