Today I received my car insurance renewal quote by email. I've been with them a couple of years. Quote all fine, it will renew automatically, but they said they will take the amount from a card number I didn't recognise. It turns out it's for my new debit card as the old one expires at the end of the month. I haven't even used it once yet! It was still in the envelope. I don't understand how they've got the number for it.