3months now without a car

In February 8th this year I was in a car accident. The car was badly damaged even airbags burst. They made an assessment & they said it will be repaired, that's when my problem started. Till today the repairs on the car has not started, the panel eater is saying because of the car being a new model (2022) the parts are not easily available. When I phone the insurance they promise to escalate the complain & promise for someone to phone me but nobody does. Cause my question is that if the parts are not available for the whole year does it means I am paying an installment & insurance for the car which is not on the road, why was the car not written off if there are no parts. I am very disappointed in the service that I am getting & deeply regret ever taking this insurance. Even people close to me are asking the name of the insurance & I am telling them.