Aviva Auto Insurance Reviews

My son had an accident in Detroit on his way to cross back to Windsor.
Aviva assigned the claim to a third-party company (Sedgwick).
The adjuster did nothing but stalled the process every chance he got.
The first Michigan repair estimate was saying total loss with cist of repairs approximately 17k USD.
The estimate was converted in Canada for 17k CAN (and repairable)!
After arguing with the adjusting company finally the car was brought to Canada and following the reinspection of an Aviva, the appraiser has deemed a total loss ( a month and a half after the accident).
The settlement offer was fair and my son accepted but when he called the insurance company ( RBC insurance/Aviva )
He was offered a quote of 445 per month up from 249 before the accident.
This is despite the fact my son was not at fault and moreover he had accident forgiveness in his policy.
Therefore he shopped around and switched insurance companies
we (my wife and I) will do the same next year at renewal and will move auto and home somewhere else from Aviva.
They are awful to deal with them! Long wait times on the phone mean the attitude of unprofessional agents etc...