What progress has been made with the investigations into the alleged fraudulent (a) payments made out of a certain Passenger Rail Agency of South Africa (Prasa) bank accounts amounting to R5,7 million as reported by the Auditor-General in the annual report and (b) banking transactions made out of abovementioned agencies’ bank accounts amounting to R8,1 million processed in the Metrorail Durban and Tshwane regions in 2008?