With reference to her reply to question 664 on 13 April 2018, what (a) was the purpose of the offering of severance packages to employees aged 55 and above, (b) was the total rand value of each package per employee, (c) number of the 31 employees were (i) replaced or (ii) will be replaced by new appointments, (d) savings was she referring to by offering severance packages to the 31 employees and (e) were the details of calculations of savings taken into account for new appointments?