No words for this kind of service

I have been with OS for many years, never had a vehicle claim till last month. They were happy to pay me out, around R8k after I submitted my photos of the damage. Their attitude changed suddenly when I requested that the vehicle be inspected by an authorized repair center chosen by them. The repair center quoted around R34k. With OME parts Since then the process has gone from bad to worse, 4 different employees have been assigned to my claim since. I made it very clear that I do not want to take my vehicle to a repair center as no vehicle, means no income for me, so I want a direct payout so I may use a PVT repair center who will be willing to work over a weekend and can do it in stages. This request was agreed upon in the beginning, however ignored throughout the on going process, having 2 repair centers call me saying OS has authorized them to repair my vehicle. Then a new issue arises, now they are not happy with the quote as it is OME parts and I need to find alternatives parts. It is not my responsibility to source parts and prices. I can not put into words how horrible the experience has been, especially for me being a small business owner. It just proves they literally do not GAS.