Nissan Magnite No parts available

My son purchased a Nissan Magnite brand new his first vehicle he owns in 2023.Two weeks ago he's had issues with pulley and belt , He called Hatfield in Pretoria and they claim there's no parts available and waiting period is 6 weeks, Surely Nissan must keep stock for a two year old vehicle.Hes now strnded no car and no work.This pulley he now cannot find probably still within warranty ? He out of desparation tried to get a belt and had it changed and now the pulley is an issue.Really very disappointed and he wants to now already sell the vehicle No spares in the country.Surely,there seriously must have an aftersales process in place to deal with parts