General Accident says I’m a higher risk being born on the 23rd instead of 22nd

I put the wrong date on my car insurance and it cost me an extra £60I moved my car insurance to General Accident (part of Aviva) after using the comparison website Confused.com to find the best deal. Having paid online I noticed from the paperwork that I had entered my date of birth incorrectly – by one day: I had entered 22 February 1965 instead of the 23rd.I sent my new insurers a copy of my driving licence as proof of my birth date and checked they had actioned it. During the conv