We are unable to cancel any order that has begun the shipping process. Only orders in the status of Processing may be cancelled.
There are two ways to cancel your order if it qualifies:
1) The Order Confirmation email you received contains a link to cancel your specific order (this link is dynamic and you must obtain it from the email).
2) Check your order status. If your order status is Processing, you will see a link directly under the order number and to the right of 'reorder' that says 'cancel order'. If this link is not present and your order is not in the status of Processing, this order cannot be cancelled.
In either case, you will be directed to a page where you will be asked to confirm the cancellation. This will then redirect you to a confirmation page and you should receive an email within 1 hour confirming your cancellation.