Changed Excess amount without any communication.

I am utterly disgusted with this Company's service together with Origen underwriters and Pridesure consultants (Broker). I claimed from these people for my car that was in an accident and then was told that my excess would be R7 483-20 and never heard anything since about the car until the repairs were completed when i go a call from West Rand Panel beaters advising that the car is ready for collection and and Excess amount of R 8 355-67 is required when i asked why, i was told to speak to the insurance as there additional repairs that were done on the insurance's sign off. Asked my broker and she was just as surprised as she was also not aware of any additional repairs. We then followed up with Origen numerous times and got no response they eventually sent me a breakdown advising that there was additional repairs that were signed off by the assesor but no one felt the need to tell me this so i could budget and now i complained to them but no joy, these people just treat customers like Sh!!!!t. I am waiting for them to give me a way forward or help me then i can collect my car but for now they need to sort this out asap. next Ombudsman, this is unacceptable.