The former South African Ambassador to Cuba His Excellency Mr Pitso coordinated the donation and requested the SANDF to take the collected items to Cuba since there was a chartered flight to Cuba which was taking personal artefact for students in Cuba and fetching those that has completed their studies. This was under special circumstances when borders were closed in many countries.
The former Ambassador is in regular contact with the Cuban Mission in South Africa, hence he got to know about the flight to Cuba by the SANDF for their own members as well as those of the NDoH. The arrangement was between the Embassy of Cuba and the donor.
Private organisations and individuals would normally not have this service available to them.