No, we don't store credit card details on our server. Our payment processing company, Eway, provides us with a 'token' that allows us to rebill your credit card every year for driver accounts which renew.
It also allows us to retrieve a certain amount of information about the card - just enough for you to verify which card it is, e.g. Mastercard or Visa, the last four digits and the expiry date.
When you update your credit card details, we securely pass that information to the payment processing company, and we don't store any data on our server.