Misled by OUTsurance by Unfair Unilateral Changes

I took out a warranty policy with OUTsurance approximately a year ago. It was clearly stated that ANY CLAIMS on my Warranty policy will not affect my no claim bonus on my household and car insurance policy. Upon that understanding I took out the Warranty Policy. I did claim on my warranty once and my no claim bonus was not affected. I submitted a claim today only to be contacted by an Outsurance consultant to inform me that my no claim bonus will be affected. I challenged that and was told that my new policy document was emailed in July 2025 and the new changes were included in my policy. Did OUTsurance mislead me initially to get the new business and now that they enriched themselves they make UNILATTERAL changes without telephonically contacting to discuss it and give me the option of continuing the policy or not. As a PENSIONER, I would have gladly taken my business to one of their competitors as it's just a warranty policy in order to safeguard my no claim bonus