Aggrieved customer regarding budget insurance & renew it bedfordview

On the 12 of September I was involved in an accident thus claimed via my insurance, my car was taken to renew it bedfordview... on the 25 of October I went in to collect my car only to find out that it’s not drivable, both the insuramce & the repair Centre are sending me from pillar to post no one wants to take responsibility this has aggravated my anxiety & depression as I’m deemed unproductive at work, As I use my car for work purposes... I really do not know where & who to turn to. In 2018 when I was involved in an accident they did not properly fix my car I had to pop out money from my pocket, I did tell budget insurance about the incompetency of the repair Centre in question