Concerns Regarding Policy Cancellation and Premium Increase

Policy number: MM000872250 I reported a minor error in my date of birth promptly. Marshmallow agreed to make the correction, increased my premium by £36.77, issued updated policy documents, and allowed the insurance coverage to begin. However, several days later, they reversed their decision, cancelled the policy, and imposed a £130 fee for the same error they had previously accepted and corrected. They acknowledged the correction, accepted the higher premium, and confirmed the amended policy—only to cancel it afterwards. This situation has left me facing an insurer-initiated cancellation, which poses a serious risk to my previously clean insurance record, along with replacement insurance quotations of around £2,900–£3,000, resulting in significant financial loss and the possibility of being unable to drive my own vehicle. What started as a simple and honest error, reported immediately, has turned into a considerable insurance issue. A formal complaint has been submitted. In my experience, this has been the least satisfactory interaction with an insurance company I have encountered in Britain. I would advise careful consideration when trusting Marshmallow with your insurance record, funds, and insurability.