MetroMail interview questions

25 minute interview, with a total of 4 questions. Somewhat vague and non-competency based interview. The second intervier was actually pointless to have in the room. Was baffled when, discussing the contractual conditions, was told that the annual entitlement would be 20 days with the possibility of buying (yes, buying with your own money) up to 5 more days. What kind of company even considers making their employees pay to what is actually their statutory right?