With reference to his reply to question 3175 on 22 September 2015, (a) what is the exact status of the completion of the Vredefort Dome project currently, (b) what is the estimated cost of the completion of the project and (c) whether the Government is in discussion at all with Unesco regarding the reasons for the delay in the finalisation of the specified project; if not, why not; if so, what are the relevant particulars?