Terrible Service

I reported a car accident to my insurer on 21 Sep 2022 and was advised a day after that my car will be written off. After I questioned the factors they considered and process followed to declare the vehicle uneconomical to repair on 22/09/2022, I was informed that an assessor has been appointed to assess and will give a final outcome. The assessment outcome has not been finalized up until now but the decision to write off was reached in a day. This is unacceptable service to your clients and is not inline with 'Treating Customers Fairly', which is a principle you are supposed to uphold. I need this finalized urgently because time is running out and I am currently using a courtesy car and the days are running out whilst the insurer is taking its time to resolve this.