Dying to fly but no refund offered:-(

My 88 year old father was booked to fly business class to Mumbai in November 2018 with his personal carer He passed on about 2 weeks before his departure date.The Airline was immediately informed and being peak season most certainly sold the seats.They partially refunded my fathers fare but would not refund the carers ticket and charged the Travel agents account R16000 which they now want payment for I would consider very carefully before flying with this airline. Surely they have no sympathy,compassion or business ethics if they can treat passengers in this manner under these tragic circumstances.