Company refusing to pay for damages bad service

A car from Bidvest Rental car hire hit my car as it was trying to avoid colliding with another vehicle, so the driver chose to come and bump my car at the back. I claimed and requested for Bidvest to pay to fix my car and the amount to fix was only R3,000.00 but Bidvest said they will not pay as their driver was not at fault, they did not even say they will cover half of the expenses, this was super terrible service and their response time was very slow, they made me run around getting all sorts of documents and at the end said they would not pay. Thiswas in my view poor serbice, not feeling sympathy for customers and the fact their driver was avoiding another vehicle was used while their driver was playing loud music in the company car.