Have to say I plumped for Privilege this year, they were about £150 cheaper for me (5 years unprotected no claims).
My last and only (minor) bump had a similar effect on my premium, again a woman claiming whiplash and "repairs" that I could see no evidence for, who put a claim in 6 months after the incident (apparently you can do this) despite me giving her contact details to let me know the cost before claiming so I could pay direct and keep my no claims intact, still you live and learn…
Be prepared the next couple of years to just cost you at least 2x the going rate I’m afraid, that’s how insurance works, they are all total bastards…