Toyota — hybrid battery

I had buy a unit camry 2.5 from kulai branch
Chassis no pn153ck[protected]
Register no wc8992a

When i collect the car, the salesman never told me the if any battery or accessories under warranty must back to service center service.
Only told me the warranty is under 3years or 100k km.

So when my battery have problem, i go to saksama checking, after the service adviser say, the battery need to change, but i not entitled the warranty claim,. I need pay the money around rm8000 haven't ➕ gst.

How's?