Poor service, unimpressed!

I'm so disappointed with the service I got, I switched to iwyze from my other car insurance because old mutual is a trusted insurer and it was more affordable, biggest mistake! I got a bump on my car and my claim was refused which I accepted and decided to switch away from iwyze because I was dissatisfied. That was end 2022 they sent me the cancelation letter but my shock is to see that this info was not updated with the credit bureau and still impacts negatively on my score. I emailed the customer care and got a nonchalant response to say i must send the cancellation letter myself to the credit bureau. The credit bureau say the easier way is for iwyze to send the update themselves because me doing it is actually a dispute which further affects my score negatively. I'm really not impressed.