Is this right? I thought they were not allowed to use this as a criteria. You got a recent credit check? You can grab a free trial at experian.
Postcode lookup is here, what rating do you come up as? http://www.carinsuranceexplained.com/car-insurance-explained/car-insurance-postcode-risk-list.html
Hmm, CW 8 gets an A on that list. Woohoo

inb4 A is actually the worst