Poor service from The Unlimited

I took extended warranty with The Unlimited in October 2024, and I received an updated schedule on the 17 Feb 2025. The policy include radiator under overheating, I claimed for radiator on 24 February 2025. Yesterday(after waiting period has expired), I received an email rejecting my claim informing that radiator is not covered, I then sent a schedule to show that it include it. After sending it, I received a call from a very arrogant representative telling me that my policy is for R389 and not R399. But the policy is only increasing with R399 from 1 April as indicated in their email.

I asked him to send it in writing and I am still waiting for written response.

They are doing every to reject my claim. I am not happy with The Unlimited treatment.