NAMDIA has dismissed the defence filed by security company G4S in the High Court as "utterly contrived" and one that is "poor and improper".

Security company G4S says that even if it is found responsible for the theft of diamonds from NAMDIA, any payout would be limited to just N$4,200.

NAMDIA has taken G4S to the Windhoek High Court, seeking payment of N$314 million.

According to court papers, on January 18, an unknown group entered the NAMDIA premises and stole 446 parcels of diamonds valued at N$314 million.

NEFF Commissar Michael Amushelelo, in a short reply to nbc News, explained why he is unable to support the G4S workers who downed tools on Monday morning.