2 type of total lost, beyond repair and beyond economic repair.
The beyond economic repair is the car can be repair but the cost is more than the insurance value. If want to take back plate number you need to provide them with a new number.
The beyond repair is the insurance deem it is just scrap metal, you can get the report then bring it to jpj and you can take back the number.

Btw I didn't pay anything to them. The 15k sum insured for the car, the payout was like 13.9k. They took 1.1k from that insurance itself.

It was market value. That value is more than whatever I could get from selling it, so consider okay la.