(1) Whether the R335 million paid by the Passenger Rail Agency of South Africa (PRASA) to a certain company (name furnished) for technological improvements was paid for technological improvements on all locomotives; if not, was the specified amount only paid for technological improvements on locomotives received to date; (2) why were the extra technological improvements not included in the original tender awarded to the specified company; (3) whether the additional technological improvements were sent to the Rail and Safety Regulator (RSR); if not, why not; if so, (a) what was the opinion of the RSR in this regard and (b) was the opinion of the RSR taken into account before the additional technological improvements were approved; (4) whether, with regard to the tender awarded to the specified company for the construction and supply of locomotives to PRASA, the RSR had insights into the tender specification before being finalised and published for bidding; if not, why not; if so, (a) at what stage was the RSR involved in the decision process regarding the purchase of the Afro 4000 locomotives and (b) what are the further relevant details in this regard?