Turned away because my 5 year old son didn't have a platinum or black fnb card

I was just turned away from the domestic slow lounge at King Shaka international airport because i was travelling with my 5 year old son and he didn't have an FNB platinum or black card to give access to the lounge. The reason that I was given is that it's peak time and as a private banking client my son needed to have a platinum or black card and that is the bank rules and if I want access my son can stay out of the lounge. Utter *******...... this gives me more reason to move my banks now...