Terrible service

I am extremely frustrated by the poor service received from FNB insurance brokers, Brolink, Straightthrough assessors and Proline. My claim ***6 has been registered last month already, My car was referred to Proline without an Assessor contacting me to explain what was happening, I then received communication that my car is being stripped and that was not my preferred panelbeaters. FNB insurance made payment to release the car but no POP was sent as this was the request from Proline in order for the car to be uplifted. I was told by Stephanie from Straightthrough that my car would reach VDS by Tuesday but still nothing. This service is terrible and then still to get told that my car will be repaired with used car parts but my instalment increases yearly for an accident that was caused by a third party, that is supposed to be liable for my cars damage. What am I then paying for? For used car parts? I am disgruntled, I have been without a car for 3 weeks and still nothing has been done.