I have problem with dotsure insurance which declined my warranty claim

I have a warranty insurance with dotsure when I lodged a claim today it just took them one minute to decline my clutch claim after sending them a quote and a service history from Landon Auto.They mislead people with their **** adverti*****t stating that they cover clutch up to R13000.00 which is not true at all and this is against ethics of advertising,they are lying and yes if you go through the policy document there are some exclusions but in my case my car is still drivable but the rev count is going up and down and I took the car to Landon Auto and they confirmed that the clutch has a problem.They gave a quote but dotsure decided to decline without a clear explanation.I beg all people who are insured with this **** to cancel their policy.Tomorrow I will go to the bank to reverse all my premiums and cancel this **** insurance company .