Kumho Tyres

I got my Brand new Haval Jolion on 17/03/2022 and started seeing that two of my tyres were slowly decreasing in pressure after 3 days of getting my vehicle.I took my car to a tyre place in Mount Edgecombe and they advised that they see no damage of the rim or any sign of pothole damage or nail and possibly be defective tyres.I had notified the dealer and they advised to get an inspector to take a look.Due to the floods, then water shortage and load shedding - I waited a few weeks to setup this inspection.Upon inspection, Kumho tyres had inspected the tyres and advised that each tyre had a pin hole in the side wall of the tyre which was causing a slow leak and ASSUMED ONLY because the tyres didn't run flat on shipment that I had damaged these tyres during driving the car within 3 days.i simply responded and asked them how does two tyres get a pin hole after driving the vehicle 3 days and no sign of pothole damage or any damage to the tyres?I have had no response and they cannot advise how two pine holes appeared on two tyres :)