Discovery promises the world but didn't deliver

I had a accident on the 20th of December ,from the get go I could see there was going to be problems,the assessors never came to look at the vehicle,because it was December and everybody had closed that time,they asked for pictures and used that to do the accessing ,with a incorrect assessment of the car,discovery distanced themselves and I had to do their job,I ran around looking for a penal beater,I moved my car to JHB as I was also busy reallocating and booked the car in myself ,Denmar gave a quote of R46000,discovery queried the amount asking why it was so much,forgetting that their assessor never actually checked the vehicle in the first place,the approval of the assessment only came through on the 21st .i started contacting discovery complaining about the amount of time I'm waiting for the quote to be approved and the time left to fix the car before the rental expired ,I only received my car in the 10th of February after discovery refused to extent the rental and left me and my family without a vehicle,their sales pitch of if its not your fault you don't pay access was a blatant lie as I paid and it wasn't my fault as someone drove into the back of my car.bad service