Hi, My grandson, Saige Tripeny Cambridge, travelled from Chch to Nelson; ref G3D47H, 21st Feb. 2021, flight; 8848. Saige is 10 years old. He said on that flight that the air hostess said he did not have to wear a mask, so he did not. He said there was coughing on board. Saige now has a cough and a sore throat and has been off school these last two days, and he has had to have a covid test which was time consuming for us and very unpleasant for him. Can you please explain the reasons for this hostess telling saige that he did not need to wear a mask? I thought it now was mandatory on all planes?