NHAKA TRANSPORT AND LOGISTICS (PRIVATE) LIMITED versus THE HEADMASTER OF NJUBE HIGH SCHOOL N.O (1) and THE MINISTER OF PRIMARY AND SECONDARY EDUCATION N.O (2) and PROCUREMENT AND REGULATORY AUTHORITY OF ZIMBABWE (3) and THE VICE PRESIDENT OF ZIMBABWE N.O (4) and THE MINISTER OF FINANCE, ECONOMIC DEVELOPMENT AND INVESTMENT PROMOTION N.O (5) and VORDIM TRADING (PRIVATE) LIMITED (6)