Unfairly charged additional access of R2500!

Hello Peter, I got vehicle insurance with Old Mutual Insure in July 2021, and then I added building insurance to my policy in March 2023. In July 2023, I claimed for a vehicle accident and Old Mutual Insure is now charging me additional access of R2500 over and above the agreed R5000 access on my policy schedule. They are claiming that I've had insurance with them for less than 6 months because I added building insurance to my policy less than 6 months ago. Essentially I'm being penalized for giving them more business, even though I've had vehicle insurance with them for almost 2 years.

I've tried to resolve the matter with Old Mutual Insure, but I'm yet to receive feedback or assistance from them. I've been emailing and calling since 20 July 2023 (31 Days Ago), and everyone I speak to keeps passing the buck. I have even asked for a direct contact that I can follow up with, but still no feedback.

I feel hard done by and left with no choice but to pay this exorbitant access amount because I'm left to deal with the panel beaters who are expecting to pay this amount in order to get my car back.

Any help or assistance of any sort would be greatly appreciated.