Open Question: I was in a car accident last summer, got rear ended at a stoplight. insurance adjuster is stalling.?

this was not my fault at all. My daughter ( is ok but was very upset) and I were sitting at a stoplight and we were rear ended by the car behind us that was rear ended by the car behind them. thier insurance company paid 3800.00 for repairs to my car.I ended up with soft tissue injury to the back of the knee and neck and back. The whiplash or cervical was severe enough to see on an x-ray. I