Williams Hunt PE

I bought a car at Williams Hunt PE . Around March 2020 with 8****m . Was told that due service and that will be the last will be in September 2024. Few days back I experienced a strange noise underneath the car which resulted to be towed into the dealership Isuzu. Currently it is standing with 89618km soon wil clock 90000km . When I call to check what they did so far.I was told by their consultant that they suspect diff and or driving shaft as major problem currently how ever the car is out of warranty. To me it shows that these parts were never taken care of by this company when they were conducting their services. I was always told about warn Blake's or tyres which I understand it's my duty to fix.. I would like them review this warranty story. Would understand better if that 90000 lapse already their service book states clearly the due time for service. If they can't see the existing problem as someone thing that they can fix who's duty is it to fix it then.