By Jack Mendel Nationwide is to complete its £2.9bn takeover of rival Virgin Money next month after the deal was given the green light by the UK’s financial regulators. The banks said in statement issued to the London Stock Exchange that the Financial Conduct Authority (FCA) and the Bank of England’s Prudential Regulation Authority (PRA) have both approved the move. It comes after the building society agreed the takeover of its London-listed rival in March. The deal was cleared by the Competition and Markets Authority (CMA) in July. Following the deal being agreed, opposition mounted from shar…