We use a third-party payment gateway to process card payments on our site, and as such, we do not save/store your card details- read our privacy policy here. We also take fraud very seriously too, so all card holders are subject to validation and authorization by both us and the card issuer.
We are generally unable to change your order content after you place an order. You may cancel your order and place a new one instead, so long it hasn’t been shipped.