Abysmal Customer Service

My son had a round-trip flight from Cape Town to China. On his return to Cape Town, he got off the plane and went through customs and then realized he'd left his phone on the plane. The airline made no effort to quickly check for his phone even though the plane was still standing on the apron and they had just got off. Many excuses and shunting him from pillar to post and to this day still no feedback. Yes, it is his fault but they made zero effort to retrieve the phone when it would have cost very little effort and he would likely have got it back straight away. Flight ET845 arriving in Cape Town on 13 January 2025.