Incorrect claim recorded, above inflation premium increase

I’ve had Miway comprehensive car insurance since 2023, with two BMWs on the policy. In 2025, Feb I cancelled one car as I sold that car and lost my discounts. It was fine, the all in premium paid on 25 march was X for only one car. In April I get slapped with a 17.99% premium increase, and when I cancel the policy they say that I had claims (which I requested a stone chip repair on both cars, they didn’t do anything as glasfit said it’s a surface chip too small to touch, and this was in 2024) yet now Miway is saying it was a loss even though nothing was done. I did email Miway last year to say remove the claim as nothing could be done. So for this, given that I had no other incident and paid my premiums deligently, they are rated 2-stars. Fixed your systems and processes, as incorrect information is being stored! Unhappy customer, definitely won’t recommend